SAN DIEGO (AP) — The teenagers who killed three people at a San Diego mosque met online and shared a "broad hatred" toward different religions and races, authorities said Tuesday.

Mark Remily of the FBI said during a news conference that authorities have uncovered writings by the suspects. Authorities declined to specify what ideologies or views were expressed by the shooters.

Authorities have also recovered 30 firearms and a crossbow from two residences searched in connection to the investigation.

Remily said authorities are still trying to uncover whether the shooters had broader plans.

Hours before Monday's attack police were racing to find the two teenagers who would ultimately be deemed responsible.