Tulare County detectives are hoping a gun they found can help them track down a killer.
A man named Omar Vargas, of Farmersville, was shot to death in Exeter.
A witness says she hosted a party Friday night, and the word got out to too many people.
She says someone drove by in a car before Vargas was shot.
Detectives found a gun, but at this time, do not know who it belongs to.