the officer said that steven glickman chased him, and made a gesture. he said they didn't know the youth was 14, and that the shooting was justified under the circumstances. the check of the records disclose the boy had been arrested six times in the past two years for the theft of buses or other muni property. >> reporter: the muni security officials say its an old problem, buses can't be locked, no keys needed to stop them. >> i don't think there is any bus that can be locked with an ignition key. they started by pushing a button, located on the dash. >> reporter: it is not quite that simple. but people figured out how the start and drive them. the 14-year-old who took this one joy riding yesterday knew how. >> he has been on muni buses in the past on several occasions, he was well known in the muni yard by the workers there. apparently part of his probation was to do community work at the muni yard. >> to me that is like taking a thief and putting him or her in the finance bureau, or working in a bank. i do not know who put the individual there, what