Earlier this year, a bushy-haired hitchhiker named Kai become an online sensation after video emerged of him explaining he stopped a man from attacking a couple by hitting him with a hatchet. Now Kai McGillvary is wanted for the murder of a New Jersey man.

Union County authorities say that McGillvary is suspected of killing 73-year-old attorney Joseph Galfy Jr., who was found dead in his Clark, NJ home on May 13. The Star-Ledger reports that McGillvary, 24, "cut his hair in an attempt to alter his appearance [and] was last seen at a light rail station in the Haddonfield area." He is also considered armed and dangerous.

It's unclear how Union County authorities came to suspect McGillvary, an itinerant drifter. Here's the video that launched McGillvary to Internet stardom:

A follow-up interview suggested his past is dark:

McGillvary is already charged with murder and has bail set at $3 million even though he hasn't been located. There's a $5,000 reward for information that leads to his arrest.