The problem isn’t gun control, the problem is the home (“Gun used in Maryland high school shooting was legally owned by shooter’s father, sheriff says,” March 21). Where are Austin Rollin’s parents? When will parents, schools and neighbors wake up and take notice when some dangerous kid in their midst? You can march, you can cut class, you can demand tougher laws, but the real answer to school violence is a willingness to pay attention to the world around you. When will our electronically-addicted population ever heed that advice?