Naim Tyrek Williams, 18, was arrested Tuesday in Delaware.
Police had been searching for Williams since he allegedly opened fire near 22nd and Crozer on April 17th at 1:30 p.m.
In the exchange of bullets, 21-year-old Demetrius Jones was shot in the head. He later died of his injuries.
A stray bullet came through the front window of 146 22nd Street. Police say 82-year-old Edith Hardy was sitting on a sofa waiting for a ride to the store when she was hit by a bullet in the neck.
She was rushed to the hospital in critical condition.
Williams is being charged with first and third degree murder and related offenses.
