A 21-year-old woman who allegedly shot and killed her former girlfriend while she was on the line with a Denver 911 dispatcher was charged Tuesday with first-degree murder, the Denver District Attorney’s Office said.

Paulette Beazhane Joyce, 21, is accused of killing 20-year-old Alexus Emily Keith, authorities have said.

The charge against Joyce was direct filed into Denver District Court, Carolyn Tyler, spokeswoman for District Attorney Beth McCann, said.

Keith was speaking with a dispatcher early Thursday morning after making a 911 call when her girlfriend allegedly shot and killed her. By the time police arrived, Keith’s body was lying inside her apartment at 2718 W. 28th Ave, according to a Denver police arrest affidavit.

The murder charge was filed in Denver County Court, according to court records.

Keith was identified in an arrest warrant affidavit as an ex-girlfriend of Joyce’s. The 911 call was made at 3:21 a.m. Thursday. It lasted about five minutes, with the victim answering questions, before ending.

Before the shooting, Joyce and another woman, a witness who was not identified by name, had gone to the apartment where the shooting occurred. “Ms. Joyce’s belonging(s) were outside the apartment, in the hallway,” the affidavit said.

Joyce and the witness went into the apartment where Joyce allegedly got into a “heated” argument with the victim.  The witness saw Joyce pointing a gun at the victim and “heard a gun shot,” according to the affidavit.

Keith’s funeral is scheduled for noon Wednesday at the Eisenhower Chapel, 293 Roslyn St., Denver. Visitation is scheduled from 11 a.m. to noon Wednesday at the chapel.