Stoopy, if the man was dumb enough to shoot 3 people, KILLING one of them, then go on the run and threaten to randomly kill people, then lie on the ground with a loaded gun to his head while surrounded by armed police, I don't think you can say he was "tasered to death". Even if the taser caused him to contract his trigger finger, well anyone who has ever handled firearms should know that you never point a loaded one at something unless you are willing to kill it, so he should never have had the gun to his head in the first place. He had plenty of time to surerender before that.
As for the jet, they can carry pods with heat seaking and imaging equipment. The pilots have to keep up their flying hours and practice anyway, so why not use some of them to do something useful?
Think of all the pensioners and sick people that could have been helped by the money that had to be spent on protecting the public from one child beating, selfish, self obsessed g*t.
It does seem to be a missed opportunity that they never gave his brother the chance to talk him down earlier though.