A hazy portrait of the two teens behind Monday’s deadly rampage at San Diego’s largest mosque has emerged from snippets of personal grievances tucked within a hate-filled manifesto they purportedly wrote and court documents seeking to confiscate guns from one boy’s home a year before the attack.Caleb Vazquez, 18, was on the autism spectrum, according to his family, and he wrote of being bullied. There were concerns of “suspicious behavior idolizing Nazis and mass shooters,” enough to get the attention of Chula Vista police, court records show. Cain Lee Clark, 17, wrestled at a Clairemont high school while attending online...