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McKINNEY (CBSDFW.COM) –The jury that found a Dallas man guilty of killing his boss after being fired, sentenced him to 50 years in prison early Sunday morning.

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Alireza Nikmanesh, 42, shot and killed his boss Kevin Murray in October 2014.

“Mr. Murray was widely loved and respected, and our hearts go out to his loved ones and colleagues. The jury held his murderer accountable,” said Collin County DA Greg Willis.

Nikmanesh was a delivery driver for Pizza Hut in Plano.

At trial, several coworkers testified they had altercations with Nikmanesh in the months leading up to the murder.

Ultimately, his boss decided to fire him.

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On October 30, 2014 Murray, along with another manager, met with Nikmanesh at the Subway restaurant on Parker and Custer in Plano. They told him he could no longer work for Pizza Hut. As Nikmanesh began to leave, Murray followed him outside to give him his final paycheck.

Nikmanesh refused to take it, and Murray turned to walk away.

Once Murray’s back was turned, Nikmanesh pulled a gun out of his car and fired eleven shots at Murray, emptying the magazine.  Murray was struck a total of ten times, the first seven in the back, and later died as a result.

After shooting Murray, Nikmanesh sat down on the curb and told a witness that he did it because Murray “annoyed” him. Plano Police Detective Brian Pfahning investigated the case and interviewed Nikmanesh after his arrest.

The jury found Nikmanesh guilty of murder. During the punishment phase of the trial, coworkers described Murray as a respectful and friendly boss who loved his job and cared about employees.

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