Radditz

Radditz is one of the 4 Saiyans that survided the destroying of Planet Vegeta.
Frieza destroyed that.He,Vegeta & Nappa were also elite figthers of Frieza.
Radditz is the brother of Goku,the main character in DBZ.
In the beginning of DBZ,the first episode,he arrived (#1--The Arrival Of Radditz).
The job of these 3 Saiyans was to take care of Earth,to destroy it.
But,because Goku went to Earth,they command Goku to destroy it.

Then,Radditz goes to Earth to check if Goku already destroyed Earth.
But he didn't,and Goku and Piccolo figth with Radditz.
Goku & Piccolo telled Radditz about the Dragonballs.
Radditz has got his Scouter on,wich is connected by the Scouters of Nappa & Vegeta.
They heared to off the Dragonballs.Then,Goku graps Radditz and Piccolo shoots a Laserbeam.
Then,Radditz was dead.But,in his last words,he told that there will come 2 Saiyans to Earth
in one year:Nappa & Vegeta.