Ronald D. Boyd, a well-built pro boxer who beat and choked his ex-wife five months before she was murdered, was sentenced Friday to 25 years in prison, State’s Attorney Angela D. Alsobrooks said.

Boyd, 41, was sentenced for assaulting Terasa Evans, 31, outside a Mitchellville nightclub on April 26, 2010.

In the months before she was shot to death, Evans wrote a letter pleading for help, which she sent to elected officials and news agencies. She predicted Boyd would kill her.

In a hearing in which she obtained a civil protective order against Boyd, Evans described the attack outside the nightclub.

As Evans tried to get into a car outside the nightclub, Boyd forced the door shut, she testified. “He started to choke me,” she testified. “He choked me to the point he lifted me off the ground, and I was trying to scramble with my feet to get some type of footing because I started to see stars. I felt like I was about to lose my breath. And I started to fight at him to break him off of me.”

Evans said Boyd punched her in the left temple and in the right jaw. Boyd’s blow broke her left cheekbone, and she needed facial reconstructive surgery, Evans said. Though Evans was not available to testify because she had been murdered, Circuit Court Judge Maureen Lamasney allowed the state to use her protective order testimony in April, when Boyd was convicted in a bench trial of first-degree assault.

Evans’s testimony helped her obtain a protective order. Five months later, Evans was shot to death outside her Hyattsville apartment. The attacker wore a hoodie and left her purse and her car, authorities said. Evans was killed two days after her divorce from Boyd was final.

Boyd’s defense attorney in the assault case, Sam Serio, has said Boyd is a suspect in the Evans murder. No one has been charged in the murder, authorities said.

“We must keep in our thoughts and prayers the many victims and survivors of domestic violence and the toll it takes on our families, children and community as a whole,” Alsobrooks said. “Love should certainly not hurt someone or cause someone fear.”

The prosecutor noted that October is Domestic Violence Awareness Month.