An Atlanta man was sentenced to 18 years in prison for an armed attack on an ex-girlfriend in her Cobb County apartment in 2015.

Golden Marcel Roberson, 31, was convicted of aggravated assault and several other charges this week,  Kim Isaza, spokeswoman for the Cobb district attorney’s office, said Friday.

Roberson entered the woman’s Vinings apartment with a 9mm handgun and found her asleep with another man, Isaza said. Roberson told the man to leave and then attacked the woman, dragging her from the bed while beating and strangling her, Isaza said.

“He told her to call her mother because it was the last time she would hear her mother’s voice, and he also put the gun in the woman’s mouth,” Isaza said.

Roberson confined the woman to a bedroom while officers tried to make contact with anyone inside the apartment, Isaza said. When officers finally entered, Roberson was found hiding in a bedroom closet.

When he was being booked into jail, Roberson gave a false name, according to Isaza.

“Mr. Roberson’s actions that night were terrorizing and horrific,” Assistant District Attorney Julianna Peterson said. “He is a danger not only to these victims, but to the entire community.”

Roberson also was convicted of simple assault, false imprisonment, battery, possession of a firearm during commission of a felony, giving false information to a law enforcement officer, forgery and possession of a firearm by a convicted felon, according to Isaza.

After prison, Roberson will serve the rest of his 30-year term on probation, Isaza said. He also has been banished from Cobb County.

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Channel 2's Nefertiti Jaquez reports.