KANSAS CITY, Kan. (AP) — A man convicted of fatally shooting his boss outside the University of Kansas Hospital in Kansas City, Kansas, has been ordered to spend life in prison.

As part of his sentence Friday in Wyandotte County, 48-year-old Willie E. Parker must serve 50 years before he can seek parole, The Kansas City Star reported . Parker was convicted in June of first-degree murder in the July 2015 death of Michel Ziade.

Parker, who did not comment in court before being sentenced, worked for 54-year-old Ziade of Lee's Summit, Missouri. Ziade owned First Class Medical Transportation, which provided non-emergency medical transport.

The shooting occurred in a parking lot near the hospital, and Parker was arrested about a week later in Missouri after a five-hour standoff with police.

During Friday's sentencing hearing, Ziade's friends and relatives described how Ziade considered Parker a friend and often helped him out with extra money and would share meals with members of his family. Ziade, who came to the United States from Lebanon when he was a teenager, was remembered as a kind, generous and loving man who doted on his daughter, who was 5 when he was killed.

Parker's attorney, Debera Erickson, asked District Judge Bill Klapper to give Parker a sentence under which he could seek parole after 25 years, citing his lack of a previous criminal record and his struggles with mental illness.

But a prosecutor, Jennifer Tatum, countered that mental illness did not play a role in the killing in which Parker demonstrated "clear thinking and purpose

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Information from: The Kansas City Star, http://www.kcstar.com