this is raditz goku's older brother little is know about him at this moment besides that. raditz has show up out of no where confronting kakarot aka goku asking him why the humans are still alive. gkou was sent down years ago to eraticate the human race so the sayians could inhabit earth. raditz then takes gokus son and flys off to the capsul he had landed in puting gohan in there and waiting for goku to show up only to see that goku has braught an ally with him and that they had decided to fight him instead of joining him.(will add more later)