passion ran more to sports than politics — he was a big University of Kentucky fan. But in exchanges on Twitter, he displayed a casual, almost unconscious racism and resentment against black people.

Tommy Juanso, a Louisville attorney, said he communicated with Bush on Twitter beginning in 2011, usually to discuss basketball, video games and music.

After the Kroger shooting, Juanso wrote a letter to the Courier-Journal, saying he believed that Bush “saw black men as one homogeneous group and indicated that they were some of the most racist people he'd ever met.” Juanso speculated that Bush was caught in “a weird dynamic between feeling insecure and superior at the same time. He felt superior because of his race, but people weren’t seeing him that way.”

Juanso said Bush made funin 2002 by his phoning a utility with a bomb threat, In 2004, he was driving to a pro wrestling school in the Midwest when he was busted with a trunk full of steroids; he never got to the school.

He lost a house to foreclosure in 2009 and declared personal bankruptcy three years later. In May, 2015, he was arrested for shoplifting a briefcase and a garment bag from a Walmart in West Palm Beach.

When he was arrested for the pipe bombs, he was working as a glorified strip club bouncer, living in a battered van festooned with bulls-eyed photos of Trump critics, and delivering pizzas part time.

Bush left his job as a UPS package handler in 2001, went on disability, and moved in with his parents.

Bowers, a