They are 25-year-old Lawrence Coleman and 29-year-old Virgil Williams.
Detectives believe they were involved in Saturday's shooting in the 1900 block of Hunting Park Avenue.
Two men ended up dying at the hospital. They have been identified as 29-year-old Nyfik Johnson and 26-year-old Quron Ross-Weems.
A woman and a 7-year-old who was grazed by a bullet are both in stable condition.
Lonzell McDaniel, 20, was previously charged in this shooting.
Anyone with information can call or text Philadelphia police at 215-686-TIPS (8477) or submit an anonymous tip online.