Singletary, of Wallace Street near 39th in Mantua is considered a suspect in three gunpoint robberies: A home invasion Feb. 12 on Pine Street near 44th in West Philly; a second home invasion Feb. 15 on 31st Street near Hamilton in Powelton; and a holdup Feb. 16 on 41st Street near Spring Garden in Powelton, according to Lt. John Walker of Southwest Detectives.