LOS ANGELES -- Los Angeles police say they're working to solve a man's mysterious death in Silver Lake.

The death, which initially looked like a suicide, is now being investigated as a homicide.

The man's body was found around 7:11 p.m. Tuesday in the middle of Manzanita Street, near Sunset Blvd., with a weapon nearby, according to the Los Angeles Police Department.

The man appeared to have a gunshot wound to the head, and a semiautomatic pistol was about 15 feet from the body, said Sgt. Sanford Rosenberg of the LAPD's Northeast Station.

"The first thing you'd think it was a suicide," Rosenberg said. "But it doesn't look that way."

Rosenberg said the trauma to the man's head "may not be a gunshot."

It will be up to the coroner to decide whether officers have a murder case on their hands, he said.

"We have a mystery."

No suspect information has been made available. Police said the victim appeared to be in his mid-30s.

Detectives are hoping that somebody in the neighborhood may have seen or heard something, even if from a distance.

"We're canvassing the area," Rosenberg said. "There's a lot of apartment buildings. A lot of doors to knock."

Rayner urged anyone with information on the man's death to call the Northeast Station at (213) 485-2563.