Generally, people who do drugs don't kill other people just because they're using drugs. I'm always surprised when I see drug use associated with violence, negligence and lack of responsability. There are many, many, manyyyyyyy people who are regular drug users that live a pretty "normal" life, they go to work everyday, they get their bills paid, they get their kids off to school, they put their kids to bed. Not all drug users are dirty, erratic, irresponsible or violent. I could bet that all of us know someone that does drugs and we have no idea they do. Same thing with high-functioning alcoholics, they are normal people with an addiction, but it doesn't mean they're violent. I believe many people are just ill-informed about addiction and recreational drug use and jump to conclusions really quickly. I do understand why people feel the need to search for reasons and catalystis when tragedies like this happen, but in most cases, the perpretors are just plain evil.
