Raditz is Bardock's First son, making him Goku's older brother. He was one of the four Sayjins who escaped the destruction of thier home world. He came to Earth to recruit Goku to their cause. Upon thier first meeting, Raditz made a very bad first impression by stealing Gohan. The ultimatum: Kill 100 humans to get his son back. Goku teamed up with Piccolo to defeat Raditz. After a fierce battle Goku held his older brother in place while Piccolo used his special attack to kill him. Unfourtunatly, the blast kill Goku as well. With his dying words, Raditz informed them of Vegeta and Nappa's arrival.