The suspect is identified as Caleb Lawrence McGillvary, a 24-year-old Internet celebrity and is well known on Facebook and YouTube as "Kai the Hatchet Wielding Hitchhiker."
McGillvary gamed fame online for his intervention in a Feb. 1 attack in Fresno, California. He was riding with a man who drove into a utility worker. The Fresno Bee reported that McGallivary pulled a hatchet from his backpack and struck the driver in the head after he confronted the Pacific Gas & Electric worker.
McGillvary is homeless but considers himself "homefree" and relies on the generosity of strangers for food, lodging and transportation.
He is also known as Kai Lawrence, Caleb Kai Lawrence and Kai Nicodemus.
The victim, Joseph Galfy, was found inside his home on Starlite Drive on Monday after officers received a call to check on his well-being.
An autopsy performed the following day determined that Galfy died as a result of blunt force trauma, said Union County Prosecutor Theodore J. Romankow.
Investigators said Kai met the attorney near Times Square, and a surveillance camera captured images of them. The men later went back to the victim's house, officials said.
A post was made to his Facebook page on Tuesday in which Kai claims he was raped by the man.
Kai later reached out to some fans in South Jersey, who took him to a train station. He claimed to be headed to Philadelphia and then to Georgia. Based on the investigation, authorities know that McGillvary has cut his hair in an attempt to alter his appearance.
He was last seen at a light rail station in Haddonfield, N.J. area, said Romankow. He is considered to be armed and dangerous.
The Union County Homicide Task Force is working with local, state, and Federal officials to locate McGillvary. He is charged with murder in Union County and bail has been set at $3 million by Superior Court Judge Stuart Peim.
Anyone with information regarding McGillvary is urged to contact the Union County Prosecutor's Office at 908-219-6735 or Union County Crime Stoppers.A reward of up to $5,000 is being offered in the case. Crime Stoppers can be reached at (908) 654-TIPS or www.uctip.org.