California officials are investigating a shooting that ended at an elementary school north of Sacramento that left 5 dead.

Google Maps, Rancho Tehama Reserve, California

According to KNVN and  WDSU News, more than one student was injured in the shooting. The dead include at least one adult; the identities/ages of the other dead/wounded have yet to be released.

According to the gunman's neighbor, there were disturbing signs prior to the shooting: the gunman had made threats and had "been shooting a lot of bullets lately".