The man who fatally shot Jacqueline Avant, a philanthropist and the wife of the music producer Clarence Avant, during a burglary at their home in Beverly Hills, Calif., in December was sentenced on Tuesday to 190 years in prison, the authorities said.
The man, Aariel Maynor, 30, of Los Angeles, pleaded guilty in Los Angeles Superior Court last month to first-degree murder, attempted murder, firearm possession and residential burglary for killing Ms. Avant, 81, and trying to kill her security guard, according to a sentencing memorandum.
Mr. Maynor broke into the Avants’ home in Beverly Hills early on Dec. 1 and shot Ms. Avant in the back with a rifle, according to the memorandum. She had been at home with her husband, whom police officers found cradling her head on the floor after she was shot. She was pronounced dead at a hospital.
As he fled the Avants’ home, Mr. Maynor fired between four and eight shots at a security guard outside but missed, the memorandum said. It is unclear if he took anything from the home.
About an hour after he killed Ms. Avant, Mr. Maynor was arrested while burglarizing a home in Hollywood, the Beverly Hills Police Department said at the time. He accidentally shot himself in the foot and had called 911 on his own cellphone for help, according to the memorandum.
Under the sentence imposed by Judge Kathryn Solorzano, Mr. Maynor will not be eligible for parole, the Los Angeles County District Attorney’s Office said. He had been on parole at the time of the murder.
Mr. Maynor received a lengthy sentence under the state’s three-strikes law for repeat offenders.
Marcus M. Huntley, Mr. Maynor’s public defender, declined to comment on Tuesday afternoon. In another sentencing memorandum, he did not explain Mr. Maynor’s motive, but he wrote that his client had become addicted to drugs after spending time in prison on robbery charges.
The Beverly Hills police found that, a day before the shooting, Mr. Maynor had used his cellphone to research Mr. Avant, the couple’s home and how to use an AR-15 rifle, according to the sentencing memorandum.
A few weeks after Mr. Maynor killed Ms. Avant, he was recorded telling a friend on a jailhouse phone call that he had planned to take $50,000 from the couple’s home, the memorandum states. He also laughed about the publicity he was receiving.
“Why are you laughin’? That’s somebody’s life,” his friend was recorded saying.
Three days later, he told another friend via phone that he expected a sentence of only 20 or 25 years, according to the memorandum.
In a statement on Tuesday, George Gascón, the Los Angeles district attorney, said that Mr. Maynor’s guilty plea had helped the Avant family avoid a “traumatizing” trial process.
“Today marks the end of a tragic case that rocked our community,” he said. “Because of a completely senseless act, Los Angeles lost Jacqueline Avant, a community leader and philanthropist.”
After the murder, a number of prominent artists, athletes and politicians expressed condolences, including Bill Clinton, Al Gore and the former Los Angeles Lakers star Magic Johnson.
Ms. Avant, a onetime model and elementary school tutor, was a former president of Neighbors of Watts, an organization that hosted star-studded benefits to raise money for child care centers.
Her husband is a well-known music executive who started Sussex Records in 1969. He signed Bill Withers and released some of his most famous songs, including “Ain’t No Sunshine” and “Lean on Me.”
Mr. Avant was the subject of a 2019 Netflix documentary, “The Black Godfather,” which featured interviews from Mr. Clinton, Barack Obama and Vice President Kamala Harris, who was then a presidential candidate.