Frankly, I'm surprised this sort of thing hasn't happened more frequently. Part of the charm of going to a baseball game is that the players and the field are relatively accessible, so it isn't difficult for any fan who so desired to jump onto the field and join the festivities. For years, "Morganna" became a cult celebrity by simply running onto the field and kissing an athlete, with what had to be the acquiescence of the home team. About six or seven years ago, some nutcase attacked Randy Myers of the Cubs after he gave up a game-tying home run in the 9th inning. In the same ballpark last year, Chad Kreuter of the Dodgers was assaulted by a fan while catching in the bullpen; when he and his teammates responded, they were showered with alcohol by the assorted rummies. Considering the ease with which guns can be obtained, it's inevitable that at some point, some drunk fan is going to run onto the field and kill someone.