207 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case?
Mary Anna Colwell, a 92-year-old Caucasian woman, passed away on December 28, 2021, in Lower Burrell, Pennsylvania. Initially, her death was believed to be from natural causes, but later investigations revealed a shocking truth. Colwell had been a resident at Belair Healthcare and Rehabilitation Center, where she was allegedly injected with a lethal dose of insulin by a former nurse, Heather Pressdee. Authorities uncovered that Pressdee had a disturbing history of abusive conduct and had been fi ...Read More
Links to Additional Sources (3)
See any mistakes?Victim Details
Mary Colwell
Female
White / Caucasian
Lower Burrell
PA
2021-12-28
92
Mary
Colwell
11/27/2025
Forum Posts (2)
I’ve been following this case closely, and one thing that's really been sticking with me is the sy... ...Read More
01/31/2025
01/31/2025
I just came across this case, and it’s beyond distressing to consider the potential lack of oversi... ...Read More
03/22/2023
03/22/2023
