Judge Thomas Harmon ordered 20-year-old Darwin Johnson on Friday to stand trial on charges of first-degree murder and use of a weapon to commit a felony.

Other shell casings collected at crime scenes sat in evidence lockers across the city, reports NBC 10 in Philly. Two years ago, the department collaborated with ATF to collect and analyze all casing.

Other evidence found at both crime scenes contained Jones' DNA and fingerprints. Ballistics evidence also traced shell casings and spent bullets to two handguns Jones owned.