Pushing Up Lillies
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  • Julie Mattson
  • May 20, 2026May 20, 2026
  • Podcast

The Death of Spencer Irwin: Questions Left Behind

In this episode of Pushing Up Lilies, I’m covering the mysterious death of Spencer Irwin, a 30-year-old Fresno City College student whose body was discovered behind a business loading dock in Fresno, California, in August of 2024. What initially appeared to authorities to be a tragic but straightforward case quickly became something far more complicated. Spencer was found naked, with no obvious signs of trauma, and early assumptions pointed toward a drug overdose or transient-related death. But toxicology reports later came back clean. No overdose. No clear explanation. And despite the unanswered questions surrounding his death, the coroner ultimately ruled it “natural causes.” What makes this case especially unsettling is what didn’t happen. No autopsy was performed.And Spencer’s body was cremated. As a forensic death investigator, I discuss the difficult reality of cases that fall into gray areas, where evidence is limited, assumptions are made early, and families are left searching for answers long after a case is considered closed. Because sometimes the hardest part of an investigation…is not what we know. It’s what we don’t. This episode contains discussion of death, investigative uncertainty, and unresolved circumstances surrounding the case. Listener discretion is advised. EPISODE TRANSCRIPT: 00:06 Welcome to Pushing Up Lilies. I’m your host, Julie Mattson. Pushing Up Lilies is a weekly true crime podcast with spine-tingling, unusual, and terrifyingly true stories from my perspective as a forensic death investigator and a sexual assault nurse examiner.  00:24 Do I have some stories for you? Are you ready? Hey guys, Julie here with Pushing Up Willies. Wanted to reach out and thank everybody again who came to our sip and solve event for the True Crime Club at McCart Street Mercantile this past week.  00:46 It was so much fun. We played crime or no crime and then a great icebreaker. We went around the room and talked about what our last meal request would be if we were on death row. So, it was really interesting to kind of hear what people’s answers were.  01:03 And most people responded with meals that brought them comfort when they were a child, which I found really interesting. And mine was potato salad, coconut cream pie, and chicken and dumplings, because my grandma used to make the best chicken and dumplings.  01:22 My mom used to make potato salad for me every time I was sick, and coconut cream pie is just my favorite. It was kind of fun to hear what everybody had to say. We did decide at the next meeting that we are probably going to dress as a serial killer.  01:41 And then we are going to cook one of the serial killers’ last meals that are in the death row cookbook that I sell in my merch shop. And we’re going to try to guess whose last meal it was. So that’ll be kind of fun.  01:58 Tiana, that owns our blended table, she also owns a food truck. She’s going to put together that meal for us. And so, I think it’ll be so much fun. So, if you love true crime and you love being around other people who love true crime and you want to have a good time, keep an eye out for our next event.  02:17 Again, Sip and Solve and it’s the True Crime Club. You can find it on Facebook. We’ll probably have monthly events maybe every couple of months. Look forward to seeing you there. We had a whole new group of people this time.  02:34 It’s a lot of fun. They had some special drinks. The one I had was embalming fluid and actually it was delicious. Non-alcoholic. We just had a great time. And heavenly encourage you to come out if you enjoy that kind of thing.  02:49 I’m super excited that CrimeCon is, it’s in 10 days, y’all. I cannot believe it. All my merchandise has arrived at the warehouse there. So, we will be leaving to head that direction on the 28th. Again, it’s at Caesar’s Palace, May 29th through 31st.  03:08 And I’m super excited. I’m so glad to be a part of it. Hopefully next year it can get on Creator’s Row, but this year I’m in exhibitor hall, booth 62. So, if you come to Vegas, come by and visit with me.  03:21 I also have my limited edition comic books there. And so, I’m super excited to roll those out so that y’all can see them. A lot going on. Tonight’s episode is kind of one of those stories that leaves more questions than answers.  03:36 It’s the kind that frustrates families and investigators and honestly anybody who even hears it. Because when a young person disappears under suspicious circumstances and then later turns up dead, people naturally expect a thorough investigation.  03:53 They want answers and they definitely want accountability, but sometimes families are left fighting for those answers themselves. This is the story of Spencer Irwin. Now, Spencer was a 30-year-old college student from Fresno, California, whose mother says he was dismissed, overlooked, and misjudged almost immediately after he was found dead.  04:18 And tonight I want to walk through this case chronologically, and I want to also discuss the forensic and investigative concerns that stand out to me as an investigator. So, on the morning of July 28th, 2024, Spencer Irwin spoke with his mother, Kelly, like he normally did.  04:40 According to reports, the two were very close. She described talking to him every single day and even meeting him for lunch between his classes at Fresno City College. Spencer was 30 years old and reportedly living in an apartment near McKinley Avenue in Fresno.  04:59 And so that Sunday morning seemed very routine. At some point during the conversation, Spencer reportedly told his mother that he was walking to the intersection of Shaw and Mark’s to get a new phone.  05:14 And so, he had apparently called her using someone else’s phone because his own

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  • Julie Mattson
  • February 25, 2026February 25, 2026
  • Podcast

What Happened to Isadora Wengel?

On this episode of Pushing Up Lilies, we’re delving into the twisted tale of David Tronnes, a Florida man whose obsession with home renovations and dreams of reality TV stardom ended in murder.

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  • Julie Mattson
  • December 3, 2025December 3, 2025
  • Podcast

The Disappearance of Ana Walshe

In this episode, I’m digging into the unsettling story of Faye and Raymond Copeland—the oldest couple ever sentenced to death in the United States.

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  • Julie Mattson
  • November 26, 2025November 26, 2025
  • Podcast

Anna Kepner: Vanished at Sea

In this episode, I’m digging into the unsettling story of Faye and Raymond Copeland—the oldest couple ever sentenced to death in the United States.

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  • Julie Mattson
  • July 23, 2025July 23, 2025
  • Podcast

Deadly Waters: Cruise Ship Deaths

In this episode, I’m digging into the unsettling story of Faye and Raymond Copeland—the oldest couple ever sentenced to death in the United States.

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  • Julie Mattson
  • September 25, 2024September 25, 2024
  • Podcast

Sleepover Tragedy: The Henryetta Murders

This week, we’re covering a case that shook the small town of Henryetta, Oklahoma, and sent shockwaves across the country. On May 1st, 2023, Jesse McFadden murdered his wife, Holly Guess, her three children—Rylee Elizabeth Allen, Michael James Mayo, and Tiffany Dore Guess—as well as their two young friends, Ivy Webster and Brittany Brewer. What started as an innocent sleepover turned into a horrifying massacre.

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  • Julie Mattson
  • September 17, 2024September 18, 2024
  • Podcast

Gone But Not Forgotten: The Tragic Case of Laura Wallen

Hey y’all, it’s Julie with Pushing Up Lilies. This week, we’re diving into the heartbreaking case of Laura Wallen, a 31-year-old beloved history and law teacher from Wild Lake High School in Columbia, Maryland. Laura went missing, and her family’s worst fears came true.

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  • Julie Mattson
  • February 21, 2024February 21, 2024
  • Podcast

Innocence Lost: A Forensic Dive into Child Deaths

Join me through the somber landscapes of true crime, on this episode of Pushing Up Lilies. In a heart-wrenching exploration, we delve into the tragic stories of young lives lost, shining a forensic light on the unsettling realities surrounding child deaths.

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  • Julie Mattson
  • September 27, 2023September 29, 2023
  • Podcast

Vanished Without a Trace

Today on Pushing Up Lilies, we venture into the perplexing world of missing persons, where countless individuals, including men, women, and children, have disappeared without a trace. Drawing from my experience as a forensic investigator, I bring you two haunting stories of women whose cases emerged in my area, shedding light on the chilling mysteries that surround their disappearances.

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Pushing Up Lilies

Pushing Up Lilies
Pushing Up Lilies

Dissect the science behind some of the most spine-tingling, unusual and terrifyingly true crime stories with Julie Mattson, a seasoned Forensic Nurse Death Investigator in this gripping weekly podcast.

Julie’s unique approach to investigations is informed by her background in nursing, which allows her to provide an in-depth analysis of the medical intricacies and physiological aspects of each case.

With her compassionate storytelling and unwavering dedication to uncovering the truth, Julie takes you on a thrilling journey into the world of forensic science, shining a light on the intersection of medicine, justice and criminal investigation.

In “Pushing Up Lilies,” Julie’s expert medical analysis will captivate your imagination and challenge your understanding of the human body’s role in solving the most complex and enigmatic criminal case.

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Grand Haven: The Karolkiewicz Family
byJulie Mattson

When an entire family is lost, it’s easy for the headlines to focus on the person responsible. In this episode, I wanted to do something different.

I’m taking you to Grand Haven Township, Michigan, where Mandy Karolkiewicz and her six children lost their lives in one of the most heartbreaking family annihilation cases of the year. Before we talk about the investigation, I want to remember the people whose lives mattered most, the victims.

Using my experience as a forensic death investigator, I’ll walk you through how investigators process a scene involving multiple homicide victims, how forensic evidence helps determine the sequence of events, and why details like wound analysis, fire patterns, and scene reconstruction are so important.

We’ll also discuss the research surrounding family annihilation, the psychological and behavioral patterns often seen in these cases and why recognizing risk factors may help save lives in the future. While we may never fully understand why these tragedies occur, we can learn from them, support those in crisis, and continue advocating for families before violence reaches a devastating conclusion.

This episode is shared with deep respect for Mandy, her six children, and everyone whose lives were forever changed by this tragedy.

* Listener Discretion Advised

Grand Haven: The Karolkiewicz Family
Grand Haven: The Karolkiewicz Family
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Andrew Hummel: Discovery of Allie
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The Questions Left Behind: What Happened to Allie Hummel?
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Andrew Hummel: Waiting On Toxicology
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The Vanished Remains: The Julie Mott Story
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A Mother’s Life Stolen: The Murder of Caroline Piña Cairo
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Amy Steadman and the Mechanicville Family Deaths
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The Survivor Who Stopped a Serial Killer
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Where It All Began: Julie’s Story – Host of Pushing Up Lilies
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Pushing Up Lilies is a weekly true crime podcast with spine-tingling, unusual, terrifyingly true stories with a forensic twist, hosted by Julie Mattson.

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Pushing Up Lilies is a weekly true crime podcast with spine-tingling, unusual, terrifyingly true stories with a forensic twist, hosted by Forensic Nurse Death Investigator, Julie Mattson.

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Recent Episodes

Grand Haven: The Karolkiewicz Family

When Murder Ends in Suicide: A Recent Wave of American Murder-Suicides

The Questions Left Behind: What Happened to Allie Hummel?

The Vanished Remains: The Julie Mott Story

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