My
copy-pasting googling skills are amazing even to myself
(just kidding)
You meant something like this?
player addEventHandler["killed", {[_this select 0, _this select 1]}];
_victim = _this select 0;
_killer = _this select 1;
_killer setVehicleInit "TitleText [format['Some whining text here?'], 'PLAIN DOWN'];";