Four Philadelphia men were slain by gunfire over the weekend, according to police, who have released the names of three.

The first homicide was reported early Saturday. After getting word of gunshots shortly before 1:30, police stopped a speeding orange Mercury and learned that the driver was rushing a man to Temple University Hospital.

The wounded man, Yusuf Sweet, 22, of the 4100 block of North Darien Street in Hunting Park, had been shot several times in the back. He died less than a half-hour later. Reports indicated that the shooting happened in the 2000 block of West 65th Avenue in West Oak Lane.

Early Saturday afternoon, a 39-year-old man was gunned down in the 800 block of East Woodlawn Avenue in East Germantown. Parrish Holmes of the 8000 block of Ditman Street, in the Tacony section of the Northeast, was found shortly before 12:30, and pronounced dead at 1:02 at Albert Einstein Medical Center.

On Sunday afternoon, a 20-year-old man was found with multiple gunshot wounds in the unit block of East Herman Street in East Germantown. The man, whose name was withheld pending notification of next of kin, was found outside at 4:20 with wounds to the head, chest, and abdomen, police said. He died at Einstein at 10:17 p.m.

Finally, a Southwest Philadelphia man was found in his living room Sunday night with a fatal head wound.

Rush Thompson, 39, of the 6700 block of Trinity Street, was found shortly after 7:30 and was pronounced dead at the scene at 7:46.

Motives and suspects were unknown in all of these cases, police said.

Anyone with information about these or other cases is being asked to contact homicide detectives at 215-686-3334 or -3335.

Contact staff writer Peter Mucha at 215-854-4342 or pmucha@phillynews.com.