Homicide detectives say a love triangle involving an Algiers woman ended in murder last month when one of her boyfriends shot the other.

The only suspect named thus far in the killing, 21-year-old Isaac Harris, turned himself in to police on Monday morning and refused to answer detectives’ questions. But a warrant suggests that another, unnamed shooter may still be at large.

Detective Barret Morton wrote in the warrant that the incident began sometime in the evening of Dec. 22. Uptown pizza shop employee Anthony Chambers, 23, was arguing with his girlfriend, who told detectives that he “struck her multiple times with his fist.”

Another unnamed witness is recorded in the warrant as telling police that the domestic abuse had occurred before. The witness said the couple, whose families lived in opposite halves of a shotgun double in the 400 block of Slidell Street, “fought daily over minor issues.”

But police said the woman told them she took a drastic step this time: She called “another male subject she is dating” — Harris, a convicted felon who lives on Apache Drive in Harvey.

The woman told police, according to the warrant, that minutes after phoning Harris, he arrived at her doorstep. Harris was allegedly accompanied by another man known to her only as “Thurman.”

“Harris advised her to stay inside and lock the door,” according to the warrant. “She closed the door and walked to the rear of the residence. At that point she heard multiple gunshots.”

Chambers had been shot dead at his family’s home just a week after celebrating his birthday. He was pronounced dead about 1 a.m.

His 64-year-old great-uncle, Sam Dixon, said one man burst through the door of the shotgun double and shot Chambers once, then another man finished Chambers off. Both men then drove off, Dixon said.

Police said a witness was not able to identify Harris from a photo lineup as the man who kicked in the door.

Police have not publicly named “Thurman,” the purported second attacker mentioned in the warrant.

Officer Frank Robertson, a spokesman for the New Orleans Police Department, said he had no new updates to offer on the case.

Harris remained in jail on Tuesday in lieu of $350,000 bail.

Editor’s note: This story was altered Jan. 10 to remove a reference to the New Orleans Sewerage & Water Board, where the suspect, Isaac Harris, was initially reported as working. The agency has no record of Harris ever being employed by the board.