I think one thing people should remember, is Eddie Guerrero actually did go through a period, whilst battling his own demons, where he beat his wife, and Vickie was so scared for her and her children's lives she took them and left Eddie. And we remember Eddie for his in-ring work.
I've been battling depression longer than I enjoy thinking about, and I also have a so-called "hidden disability." I know that the two things combined can very easily lead to other mental health problems; paranoia, low self-esteem, ultra-perfectionist tendencies, extreme stress. I've snapped a couple of times and not been able to remember what happened in the days that followed, as you go up and down quicker than a rollercoaster - one minute you can be homocidal, then five minutes later, completely suicidal and grief stricken, then back to homocidal, until, eventually, your system calms itself down.
Throw in recreational drugs (and that includes alcohol), steriods, and even prescription drugs (the first three anti-depressants I took made me very aggressive) and you've got a very dangerous mix, that something seemingly trivial could just make a person snap. I like to compare it to a dam - the dam is your grip on things, and everything is building up behind it, whilst something's attacking the front, trying to weaken it. Once a deep enough crack appears, the dam just bursts, and everything gets let out at once.
I think that may be what happened here. I'm probably going to be in the minority, but, as well as feeling sorry for Nancy and Daniel, I feel very sorry for Chris, if my assumptions are right. He lived a very stressful life as a professional wrestler, travelling all the time, always somewhere new, somewhere different, and he didn't let many people get too close to him - then his best friend died, and everything else just built.
Actually, I told my dad about it when it was only suspected as a murder/suicide, and his response was "given the drugs (prescribed and otherwise) etc I am surprised there is not a lot more of this."
I agree with him - someone needs to look into the wrestler's lifestyles, ESPECIALLY in the WWE with their heavy schedule.