
A Pennsylvania cold case is back in the news as the family of Matthew McDonald, a Pennsylvania man who vanished on March 9, 2023, demands answers. The calls come amid chilling allegations involving his ex-girlfriend and his girlfriend at the time he disappeared.
New scrutiny has emerged following viral social media content in which McDonald’s ex, Sierra, appears to sing lyrics referencing murder — “I just killed my ex” — using video clips posted on McDonald’s own accounts.