Great question! They are called Resource Officers. I know that we had them in Middle and High School, but not in Elementary School. They do NOT have one on duty at my niece's Elementary School (I just learned this). :banghead:
I remember having them as well and you are right they are called Resource Officers, I couldn't think of it. I always find it comforting to know there around to help and protect from dangers like the incident that happened today. Bless those families I hope they find comfort and don't let that evil one take over the rest of there lives. So senseless.