The Internet celebrity, who saved a person from assault in February, is a suspect in a New Jersey death

Caleb “Kai” McGillvary, who has gone from overnight folk hero to murder suspect in a matter of three months, was arrested Thursday in Philadelphia and charged with homicide.

The homeless hitchhiker, 24, was arrested at 6:30 p.m. at the Greyhound Bus Terminal and charged in the murder last Sunday of Joseph Galfy Jr., the prosecutor’s office in Union County, N.J., announced on its website.

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Galfy, 73, an attorney, was found dead in his Clark, N.J., home on Monday of blunt-force trauma. In a post on his Facebook page Tuesday, McGillvary claimed he had woken up “in a stranger’s house” and found he’d been drugged and raped, the Philadelphia Inquirer reports.

“I believe that everyone is a little safer with this person off the streets,” prosecutor Theodore J. Romankow said in a statement Thursday.

McGillvary reportedly cut his famous long hair and got a facial tattoo in recent days, apparently in an effort to avoid detection.

In February, McGillvary became an Internet sensation after he used a hatchet to thwart an attack on a utility worker in California. A profanity-laced video he gave to a local TV news station went viral, even earning him an appearance on Jimmy Kimmel Live!