Other source:
Trunks knocks Buu away from his father, and he and Goten free Vegeta from his bonds. Piccolo attacks Babidi, and despite the wizard using all of his magic to defend himself, Piccolo is able to slice him in half. Vegeta recovers, and tells Trunks that he is proud of him. For the first time, Vegeta embraces his son. He then knocks out Trunks and Goten, allowing Piccolo to carry them away to safety. With Buu back and ready for more, Vegeta makes the ultimate sacrifice: he erupts in a blinding flash of light, certainly killing anything near him, including himself. One of the two last pure Saiyan's is now gone.
