Ayoola A. Ajayi, 31, was arrested and charged with aggravated murder, kidnapping and desecration of a body in the death of Lueck, Salt Lake City police Chief Mike Brown said.
Ajayi, of Salt Lake City, met Lueck at a park where she was last seen after taking a Lyft ride from the airport at 3 a.m. June 17, police said.
Investigators said burned evidence, including Lueck's belongings and remains, were found at Ajayi's home. Ajayi was previously identified as a person of interest and his home was searched Wednesday and Thursday.
Ajayi has no previous criminal history in Utah, The Deseret News reported. He sporadically attended University of Utah, taking classes in 2009, 2010, 2015 and 2016 but never earned a degree, according to the Deseret News.
He spent six months in the Army National Guard but was dismissed "with an uncharacterized discharge for failure to meet medical procurement standards," Utah National Guard officials told the Deseret News.
Ajayi also self-published a book "Forge Identity" and his Amazon profile says he was born and raised in Africa and became an entrepreneur.
The Associated Press contributed to this report.
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