Yeah. It's Fox.
Homicide bombings.
Okay, so let's see logically:
a) this guy committed suicide by blowing himself up in the presence of soldiers.
b) the goal was clearly to kill the soldiers
c) neither side of this war considers the perpetrator anything other than a combatant.
d) in wartime, soldiers are legitimate targets
combining b c d and you get "a legitimate combatant killed legitimate enemies". If Fox wants to call that homicide (literally: the killing of a man), then the US has a lot of homicide airstrikes.
Suicide bombing, on the other hand, describes perfectly clearly what happened: whether anybody else dies or not, the attack remains the same. If the guy blew himself up and didn't kill anybody, you couldn't even according to Fox's logic apply the term "homicide"