The mayor interviewed Beck Wednesday, and will interview McDonnell on Thursday and Moore Friday. He will then make a recommendation to the L.A. City Council for final approval.
Current Police Chief William Bratton's last day is Saturday. He's moving back to New York to work for an international security firm.
The LAPD began saying goodbye to Bratton Wednesday with a tribute at police headquarters. Bratton was honored by the city council, then held his final news conference.
He was joined by the three finalists to replace him.