A man living in a Cranston homeless shelter was behind bars Wednesday after he was arrested for threatening to kill a Quincy officer.

The threats, against no cop in particular, were made on Facebook.

Jerome McIntyre, 31, was nabbed at the Harrington Hall shelter Sunday, after a brief struggle and reportedly had a knife on him.

There were also open warrants for the suspect in Rhode Island, including threats, witness intimidation, and weapon possession.