that easterble. but we're having that discussion because it's important for you to survive an incident and to be safe. >> the class was developed by the police chief's association and the county office of education. it's taylored for all levels from kind ergarten to college. >> it doesn't matter if they're at the shopping 3458, movie theater or if we have folks that also work in their workplace. >> college campuses can be filled with thousands of students. that makes preparing critical. at foothill college, abc 7 news. >> police were new to call today for witnesses to come forward in the hope of camping a killer of a young single mother. the 21-year-old died in front of her son. he was just four at the time. two other people were also wounded in the shoot iing. >> please, you don't have to say your name. it could be anonymous. just help us bring my daughter's murderer to justice. >> it doesn't have to be the smoking gun. just a little bit so that we can do our work. >> police say they do have some in