If memory serves, that has already happened several times. The most egregious was the Weaver family (Ruby Ridge) when the feds raided to arrest him for "selling a sawed-off shotgun". As I recall, his wife, son, and baby were killed.
Son first, then wife was shot in the face by one of the Feds. The baby lived. I saw them on television a few months back. The daughter was grown up and moved away, and the younger baby wouldn’t go on TV for some reason. (She’s a young adult now if I remember right). Weaver still lives in the same house.
Close, they, the BATF, had already arrested him for that. The federal marshals were "surveiling" his property and family because he failed to show up in court. The Marshalls shot the dog, because he had alerted to their presence, then the son shot *at* the hidden Marshals because they had shot his dog. The Marshals then killed the kid. Then a family friend shot and killed a Marshall. Finally FBI was called in, Weaver's wife was shot, by FBI agent/sniper Ron Horiuchi, while holding her assault baby, as was the friend.
On the original charge, Weaver was found not guilty because of entrapment. IIRC the "failure to appear" charge was dropped, in part because Weaver was given the wrong court date. The Taxpayers ended up paying Weaver a small fortune for "wrongful death".
And of course the FBI HRT team was rewarded with promotions and such. Some went on to participate in the Waco/Davidian bonfire.