Maul grabs Qui-Gon by the head, impales him in the stomach looking him deeply into his eyes diving in Qui-Gon's paine, murdering him like 99% of the Sith murder Jedi because of Jedi clinging to weakness and striving their best to remain as weak as possible.
What's funny, is that then Maul joins Talzin to round up Yoda, but they still fail and Yoda wins in a tremendous battle.