The suspect of an aggravated assault in St. George was arrested Monday in Los Angeles.
Mario Lucero was booked into jail in California on two warrants; one for aggravated assault and one for a parole violation.
Lucero, 31, allegedly assaulted 31-year-old Jeremy Shawn Olsen, of St. George, on Saturday. Olsen died Sunday at the University Medical Center in Las Vegas.
The investigation is ongoing and anyone who may have information is asked to call the St. George Police Department at 435-627-4300.