Salvador Rendon Junior, 19, is accused of killing Felipe Bravo Junior. His body was found in the trunk of a car in the Moss Landing area of Monterey County on New Year's Day.
Merced County detectives now believe Rendon shot Bravo in Los Banos. They say Rendon may be headed to Mexico or hiding out in the Turlock area.
A $10,000 reward is being offered for information which leads to a conviction.