now police are using a robot to search a waterway for the gun used in yesterday s mass murder at that oakley christian college. it is not far from waco s university and that is where we are standing by with new details on the murder weapon and the possible motive. what we do know about that gun is that police say it was legally purchased about six weeks ago chief jordan told cbs five the that the suspect had planned this attack since january when he was expelled. investigators are back at the school looking for answers and police are on the hunt for this murder weapon. we have new clues as to why the shooter went on this rampage. one of the worst school shootings in california has a suspect and possibly a motive. we know that he came here with the intent of locating the administrator. a oakton police chief a statement this morning identifying the suspect. chief jordan says the former student walked into the school asking for a female administrator and many cannot find
around west marin the start of the operation this morning. teams were taken into the watershed area near fairfax in the heels of mount 10 tamil pious. this is the scene just a few miles from fairfax helicopters were flying back and forth carrying bundles of mature pot plants. the helicopter operation continued to the afternoon. police would not say how many plants were seized the to concede they have a lot. the operation has been in the works for a long time a park ranger came upon the growing operation several months ago pleas would not say why they waited so long to make the best but did say operations like this take a long time to cordate. the marin county sheriff s department was running the show but they did have help from the dea state narcotics office in surrounding agencies. the national guard was also in the mix. please see the forms were in full operation when it was conducted. they did not say if any arrest for made or any of the if any resistance was encountered