He and the other victim, a 55-year-old man, were standing and drinking beer at about 11 p.m. in front of a home in the 100 block of Birch Lane when an unknown male opened fire on them, police Sgt. Jason Dwyer said.
Paramedics performed CPR on one of the men at the scene and took both to Regional Medical Center, where one was pronounced dead at about 11:20 p.m., Dwyer said. His identity had not been released today.
The other victim was treated for non-life-threatening injuries and released.
Police are not saying whether either man lived at the home where the shooting took place, Dwyer said.
No arrests had been made in the case as of this morning, and police were still trying to identify a motive.
The shooting was San Jose's 23rd homicide of the year, according to Dwyer.
Anyone with information about the case is asked to call the Police Department's homicide unit at (408) 277-5238. Anonymous tips can be left at (408) 947-STOP (7867) or http://svcrimestoppers.org.
Tipsters could be eligible for a reward.