The Fresno County Sheriff's Office has identified a man shot and killed at a crowded party.

It happened early Sunday morning at an abandoned barn on cherry and central in Fresno County.

Investigators say someone shot and killed 20-year old Marcos Hernandez of Selma.

About 300 people were packed inside the barn at the time of the shooting. News of the party spread on a "MySpace" web page and by text message.

Anyone with information on the shooting is asked to call the Fresno County Sheriff's Office.