Trash with a Power Level of Only 5

Who was Raditz? He was Goku's older brother. Saiyans were a warrior race. From birth, they possessed powerful fighting strength, a desire for battle, and a strong sense of honor. On Planet Vegeta, once a Saiyan infant was born, their power level would immediately be measured. If the reading was exceptionally high, they would be regarded as an upper-class warrior and raised as a prospective combatant.