Mark Mangaccat (left) and Thandar Seinn.

Mark Mangaccat and his girlfriend Thandar Seinn. Selfie taken by Mark on the Golden Gate Bridge in 2014.

A former airport worker in California was convicted this week ofmurdering his co-worker’s boyfriendafter the woman rejected his advances to start a relationship, authorities said.

On Friday, a jury found Kevin Prasad, 37, guilty on all counts, including first-degree murder, lying in wait and firing into an occupied vehicle in the 2018 killing of 31-year-old Mark Mangaccat, the San Mateo County District Attorney’s Office announced in apost on X(formerly known as Twitter.)

San Mateo County District Attorney Steve Wagstaffe told reporters at the time that Prasad and Mangaccat “had never had a conflict, never had any fight, battles or anything like that,”according to ABC7. “He just happened to be the boyfriend of the woman he wanted in his life.”

On April 25 2018, Mangaccat went to the airport to pick up Seinn, who had worked her last shift as a security officer.CBS San Francisco reportedthat the couple planned to move to Las Vegas with their 3-year-old daughter.

In a desperate attempt to keep Seinn from moving, Prasad allegedly decided to take violent action, D.A. Wagstaffe previouslytold theDaily Journal.

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“Almost as an afterthought [Seinn] said, ‘There is a fellow at work who has had an interest in me, but he would never do that,’ ” San Mateo County District Attorney Steve Wagstaffe told PEOPLE in 2019. “It really flowed from the fact that, well, there is this guy at work and that’s what led to these guys.”

Seinn previouslytold PEOPLEshe thinks about Mangaccat every day and wished things turned out differently.

“I wish it could be a bad dream,” she said in 2019. “But it’s not. I am empty. I only think of Mark. He should be here. It is a killing for nothing. There was no reason.”

According toThe Mercury NewsandSF Gate,Prasad’s sentencing is scheduled for Nov. 17.

UnderCalifornia law,those convicted of first-degree murder face 25 years to life in state prison.

source: people.com