let's go to stephanie zeppelin. she's joining us from the scene there and had a chance to listen to the sheriff talk about some of these questions as to how this all happened today. >> reporter: steve, they think one of the most likely options is somebody gave him a ride. the sheriff said i hope he jogged because that would mean only he was involved and they only had to worry about him and a case against him. they think the most likely option is somebody gave him a ride from here to southern they don't know if that somebody was prearranged, someone he knew or he flagged somebody down driving along the boulevard. that's yet to be determined as he was taken into custody. we don't know of anyone else that was taken into custody at the time. another question we had all day was whether gunfire was exchanged. lomb lombardo said the suspect and the officer were talking to each other before the suspect opened fire and hit the officer, once in the chest and once in the armpit area. after being shot, the officer did return fi