A man convicted of murdering a Clayton County deputy was sentenced to life without parole, plus 70 years.

Channel 2’s Carol Sbarge attended the sentencing hearing for Jonathan Bun on Thursday. His defense offered a challenge, citing a recent U.S. Supreme Court hearing that banned mandatory life-without-parole sentencing for murder convicts under 18. Ultimately, the judge said the law allows for “judicial discretion.”

Bun was found guilty of gunning down 25-year law enforcement veteran Rick Daley. Bun, who was 17 at the time, was arrested hours after a massive manhunt July 20.

In court, Bun said he was in the passenger seat of his friend’s car and noticed a white truck following him. Inside the white truck was a fugitive-apprehension team trying to arrest Bun on armed robbery charges, police said.

Bun said he saw Daly approach, but he had no idea that it was a deputy walking up to his friend’s car, so he opened fire.

But prosecutors pointed out that during a videotaped interview, Bun told investigators he saw blue lights in his side mirror and knew it was an officer.

Prosecutors also showed what appeared to be a confession written by Bun while he was in hiding. He sent a text message to a girlfriend saying, “I just shot at a police. My time ends here.”

Records show Bun has a criminal history dating back to when he was just 10 years old. Allegations against him include burglary, trespassing and drug charges.

Daly, 55, was the first deputy in the county to be killed by gunfire on the job.

http://bcove.me/059gzhax