7:30 p.m.The Napa Downtown Merchants Association has put up a $5,000 reward for information leading to the arrest of the person who stabbed an elderly man in front of a downtown restaurant Tuesday night.

The 71-year-old Napa man suffered four stab wounds. He was treated that night at Queen of the Valley Medical Center and released.

The victim and his wife had just finished dinner at Downtown Joe’s. He was standing on the sidewalk in front of the restaurant when a young man approached and stabbed him once in the chest, twice in the abdomen and once in the back.

Police say they do not know of a motive, and at this time believe the attack was random.

The victim told investigators he had not been involved in any altercations prior to the stabbing, police said.

The assailant ran off headed north on Main Street.

“This is a bizarre random attack. We have never had any other unprovoked assaults like this downtown that I can recall,” Napa Police Cmdr. Andy Lewis said. “We are still trying to put all of the pieces together.

“But this should not discourage people from going downtown and patronizing our local businesses,” he said.

The assailant is described as between 16 and 20 years old, clean shaven, 5-foot-6 to 5-foot-9, about 130 pounds, wearing a white, long-sleeve T-shirt, blue baggy jeans and a white baseball cap worn backwards.

Anyone with information is asked to call Napa Police Det. Don Winegar at 258-7879.