ELLICOTT CITY, Md. (AP) -- Howard County Police Chief William McMahon is retiring, after eight years in the post and 30 years in law enforcement.
County Executive Ken Ulman announced McMahon's retirement on Thursday. He said the chief has made Howard County a better place.
Ulman appointed McMahon chief in 2006.
McMahon, 51, was in the national spotlight in January after a gunman killed two people at Columbia Mall before killing himself.
McMahon's last day will be June 30.
Ulman says he has named Maj. Gary Gardner, deputy chief for operations, to succeed McMahon.
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