On June 25, 2016, Pennsylvania State Police responded to a barn on a property along Welsh Run Road in Mercersburg, where they found a violent crime scene. Three people — 36-year-old Phillip Matthew Jackson, 39-year-old Wendy Ann Chaney of Hagerstown, Maryland, and 47-year-old Brandon Cole of Fayetteville, Pennsylvania — had been shot, their hands bound behind their backs with zip-ties, and their bodies set on fire. Chaney and Cole were pronounced dead at the scene; Jackson was transported to York Hospital but died shortly after arrival.

Investigators determined Chaney was the primary target because she had been cooperating with federal authorities in a drug investigation. The killings were intended to silence her and eliminate witnesses. The attack was carried out by hired members of a Baltimore-based gang who were promised payment and any drugs or firearms they found in the barn.

If anyone knew Phillip Jackson, his connections, or was in the area of Welsh Run Road around June 25, 2016, law enforcement may still welcome information.