I personally think it's just wrong knowing that the guy died. Death is not a happy or laughing matter. Sure what he did was wrong but in the end who knows what really went through his mind that day ? Nobody, it could have been suicide, he could have been tired of his life. It's very much wrong to laugh at something like this, especially when you know that he died in the end.
DEATH is no laughing matter, no matter who it hits or how and where it occurs. Have compassion people. (Picture yourself in his shoes for one moment, would you be happy that people laugh at the way you died, even if it was stupid ?). Seriously, what has this world come to.