A Revere man who prosecutors said harbored homicidal and suicidal ideations is facing animal cruelty charges for allegedly stabbing his dog at least five times, killing the animal.

Revere police and firefighters rushed to a Lowell Street apartment just before 1 a.m. Aug. 30 for a medical aid call and allegedly found Don Algeni, 57, lying on his bed, covered in blood, and screaming that he wanted the police to kill him, according to the Suffolk DA’s office. He then passed out.

Beside the bed, riddled with stab wounds and a gash so deep in its neck that it was almost decapitated, was Algeni’s dog.

While the dog was the most visible sign of the violence that allegedly occurred in the home, prosecutors say that Algeni’s roommate described an ongoing problem and had just that night, about four hours earlier, banged on her bedroom door demanding to be let in and threatening to enter with his own key should she not open the door.

“I’m going out and I’m not going out alone,” Algeni allegedly said the week before, according to the roommate, who also showed police a video in which Algeni allegedly screamed at her and threw a cup.

Chelsea District Court Judge Kareem Morgan ordered Algeni held without bail pending a dangerousness hearing scheduled for Thursday following Algeni’s arraignment on charges of animal cruelty, malicious killing or injury to a domestic animal and assault and battery on a family or household member.

“This is a tragic and terrifying situation for everyone involved, including the first responders,” Suffolk DA Kevin Hayden said in a statement Wednesday. “Sadly, a defenseless animal was brutally attacked and killed. It’s yet another example of how unpredictable 911 calls can be and an example of responders handling their responsibilities with care and restraint.”