The Dodgers have chosen former Los Angeles police captain Rich Wemmer as ballpark security chief. The Los Angeles Times reports Wednesday that Major League Baseball, which took over the team last week, must approve the hiring of 63-year-old, who retired in 2008 after 40 years in law enforcement. The top security position has been vacant for four months and became an issue when Giants fan Bryan Stow was severely beaten in the Dodger Stadium parking lot on Opening Day.