San Diego mosque shooter Cain Clark, 17, left a hate-filled suicide note before he stole his mother's weapons and opened fire alongside Caleb Vazquez, 18, at the Islamic center on Monday.

The complex is home to the Al Rashid school where crowds of young students were seen being evacuated on Monday following reports of the shooting.

The complex is home to the Al Rashid school where crowds of young students were seen being evacuated on Monday following reports of the shooting.