sleep.

His roommates knew he’d been in the military and thought he might suffer from PTSD. But Beierle once bragged about having repeatedly rebuffed suggestions that he get help.

A PERSONAL ISOLATION

Each was a man apart from others.

Sayoc, the most engaged and outgoing of the four, was estranged from his family. Even his grandmother, with whom he lived for a time, reportedly sold her home to get him out.

A bad relationship with his mother ended completely about four years ago when she refused to let him use her mailing address until he sought mental health care.

His former lawyer, Ronald Lowy, says he sensed in Sayoc an emptiness that was filled by Trump – a surrogate for the father who abandoned his family during Cesar’s early childhood.

He married a fellow strippersteady relationships, none of them with women. In his YouTube video, Plight of the Adolescent Male, Beierle calls beautiful women the “epitome of arrogance.”

AN IMMERSION IN SOCIAL MEDIA

Social media is both a window onto the passion that motivates hate crime and an echo chamber that nurtures it.

Sayoc used social media to advertise his support for Trump and show himself at rallies and other events.

Bowers’ nascent infatuation with fringe ideas — while at the bakery, he puzzled friends with tirades against UN “Blue Helmets’’ (peacekeepers that the far right considers a threat to U.S. sovereignty) — blossomed online into xenophobia and anti-Semitism. He seems to have moved right thanks initially to talk radio, and then kept going online.

A new platform, Gab, had an anything-goes tolerance for extreme speech that