Christopher Gumm, 55, of Pottstown, Pennsylvania, was shot and killed at his parents’ home on February 18, 2021. His girlfriend, Sally Sines, 47, was also found dead at the scene. Police say Christopher’s brother, 60-year-old Timothy Gumm, initially denied being at the house but later admitted to arguing with Christopher and shooting both victims, telling officers he thought Christopher had a knife and that he pulled out a gun.

Timothy Gumm was arrested and charged with two counts of criminal homicide and one count of person not to possess a firearm, and he was held without bond in the Allegheny County Jail. Neighbors expressed sorrow and disbelief, and Christopher was remembered as a well-known, beloved member of the community.

Anyone with information that could help the investigation or who knew Christopher, Sally, or the family is asked to come forward.