Motive a mystery as California police hunt for accomplice in festival shooting
![](https://r58b8e.a2cdn1.secureserver.net/wp-content/uploads/2018/02/worldnewsdyil2auoc8za.gif?time=1719406638)
Police were searching on Monday for a suspected accomplice of the gunman who killed three people, including a 6-year-old boy, in a mass shooting at a food festival in California.