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Crime Junkie

MURDERED: Mary Yoder Part 2

March 23, 2026 • 50m

Summary

⏱️ 8 min read

Overview

In this Crime Junkie episode, Ashley Flowers continues the Mary Yoder case investigation, revealing how the focus shifted from her husband Bill and son Adam to office manager Katie Conley after an anonymous letter pointed to evidence in Adam's car. The episode covers Katie's two trials, conviction for manslaughter, and the shocking 2025 reversal that freed her after seven years in prison due to prosecutorial missteps with sealed evidence.

The Investigation Turns to Katie Conley

After finding colchicine in Adam's Jeep following an anonymous tip, detectives traced the purchase to an email address accessed from Katie Conley's home IP address and deleted from her phone. When confronted, Katie initially claimed Adam confessed to poisoning Mary, but investigators noticed her story matched the anonymous letters word-for-word. As they pressed her, Katie began suggesting Adam was framing her, revealing her knowledge that 'poison is a lady's weapon' and displaying increasingly suspicious behavior.

  • The colchicine was ordered to the Yoder's chiropractic office in February 2015, signed for by Katie Conley
  • The email account used to order the poison was accessed from the Conley home IP address and deleted from Katie's phone in November
  • Katie admitted to writing the anonymous letters after initially denying it
  • Katie suggested Adam confessed to her and that he was trying to frame her for the crime
" Poison. They say it's a lady's weapon. "
" I'm afraid he put it back on me. "

Digital Evidence Builds Against Katie

Investigators uncovered an extensive digital trail tying Katie to the crime. The Gmail account used to purchase colchicine was created from the Yoder office, where Katie worked. A credit card opened in Mary's name listed Katie's cell number. Searches for various poisons, including calculations for lethal doses based on body weight, were found on the office computer Katie used most. Katie's phone contained deleted notes with the email password and scanned copies of all documents sent to the colchicine supplier.

  • The suspicious Gmail account was created in September 2014 from the Yoder office IP address
  • A credit card opened in Mary's name had Katie's cell phone as the contact number
  • The office computer had searches for poisons and lethal dose calculations, possibly using Mary's exact body weight
  • Katie's phone contained notes with the Gmail password 'AdamIsGay' and scanned documents used to order the poison
  • Katie's DNA was found on the colchicine bottle, wrapper, and under the stamp on the anonymous letter

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