Gurpreet Singh Gosal, 28, was sentenced for the second degree murder of 26-year-old Parmjit Singh Pamma outside the Bradshaw gurdwara in Sacramento during a Sikh sports festival on August 31, 2008.
Gosal was convicted by the jurors of Sacramento Superior Court.
He apologised to the victim's family through his attorney on hearing the sentence, local news portal News10.Net reported today.
The shooting was the result of an argument between Singh and Gosal, detectives said. Witnesses held Gosal until sheriff's deputies arrested him.