(CNN) The man accused of stabbing multiple people at a New York Hanukkah celebration has been indicted on assault and attempted murder charges, Rockland County District Attorney Tom Walsh said Friday.

Grafton Thomas , 37, allegedly slashed at least six people with the intent to cause their deaths, authorities said.

Thomas had pleaded not guilty to five counts of attempted murder in connection with the December 28 stabbings. A judge set his bail at $5 million.

Walsh said Friday the indictment charged six counts of attempted murder in the second degree, three counts of assault in the first degree, three counts of attempted assault in the first degree and two counts of burglary in the first degree.

The sixth victim is another son of Rabbi Chaim Rottenberg, who hosted the Hanukkah celebration at his home, a law enforcement source told CNN Friday.