PHILADELPHIA (KYW Newsradio) — Keith Gibson, the man charged in the killings of four people in 2021 — including his own mother, two store clerks and a Dunkin’ manager — was found guilty by a jury on Tuesday of four counts of first-degree murder.
During a week of testimony, prosecutors showed jurors physical evidence, videos and a revolver that they said tied Gibson to the three “horrific” incidents and four murders.
In all four homicides, prosecutors said the victims were shot in the head, and each motive was robbery…