Was what the jumpers did on 9/11 "homicide" or "suicide"?

Yes they wilfully chose to jump in most cases, though some escaped the Tower cause of the fire or some accidentally. But the choice doesn't contradict that it's not suicide. Intention is what matters. They knew they were going to die. They just wanted to chose the method of dying. They were not going to let the terrorists beat them. They wanted death on their terms, not the terrorists terms. Homicide is because they were murdered already.