It all seems so unfair

A brief timeline;
couple marries
couple divorces
dude wants to remarry; is unable to
dude decides certain people are keeping that from happening
dude (allegedly) kills 3 people he holds responsible for keeping the remarriage from occurring
dude goes on ledge of 8th story hospital room and threatens to commit suicide
to keep from not being able to prosecute him with a capitol offense it becomes necessary for the police to enlist the help of the fire department who subsequently shoot him off the ledge with a water cannon
dude goes to court to be tried for his life...


question: instead of putting the air cushion under, why not just shoot him off the ledge, say he jumped and be done with it? if someone is going to threaten suicide, I say...help them along.