So after Vorgil shoots a pregnant woman in the womb letting her realize what has happened before shooting her in the head, he gets in a car and drives away with the 'spunky' female lead, Kat. As he keeps driving into obstacles, Donte stops time so he can save them.
How, Why, When, If and And???
I didn't even see it explained. He just... slows down time without activating pseudo-ProperDante (i.e. Devil Trigger) mode.
My harem - http://i67.photobucket.com/albums/h297/NIck_Kazama/bunnyharuhi.jpg