Yesterday’s Cop Killer was an Alex Jones fan and had a Stormfront account:

Believing most media were covering up important events, Mr. Poplawski turned to a far-right conspiracy Web site run by Alex Jones, a self-described documentarian with roots going back to the extremist militia movement of the early 1990s.

Around the same time, he joined Florida-based Stormfront, which has long been a clearinghouse Web site for far-right groups. He posted photographs of his tattoo, an eagle spread across his chest.

“I was considering gettin’ life runes on the outside of my calfs,” he wrote. Life runes are a common symbol among white supremacists, notably followers of The National Alliance, a neo-Nazi group linked to an array of violent organizations.

“For some time now there has been a pretty good connection between being sucked into this conspiracy world and propagating violence,” said Heidi Beirich, director of research at the Southern Poverty Law Center and an expert on political extremists. She called Mr. Poplawski’s act, “a classic example of what happens when you start buying all this conspiracy stuff.”