Kai tried to kill himself yesterday in a New Jersey jail where he's being held on murder charges, Gawker reports
. He was hospitalized with non-life threatening injuries. Kai -- born Caleb McGillivary -- was arrested
in May after police found a 73-year-old New Jersey lawyer Joseph Galfy dead in his home. The two reportedly met by chance in Times Square before returning to Galfy's home.
An Arcata Plaza habitué
, Kai rocketed to Internet fame after he stopped an attack on a PG&E worker in February. He has pleaded not guilty to the murder charge.