Ebirdun and Kayun were the most infamous and prolific Twi'lek serial killers and terrorists on Nar Shaddaa. They began killing old aged people at Promenade a commercial and extravagant region of Nar Shaddaa. They were nicknamed as Green Rippers. They were arrested on Refugee Sector, Ebirdun was sentenced with ten years imprisonment to psychiatric clinic and Kayun with imprisonment without a parole. The Twi'lek killers escaped and killed over a hundred people at the Undercity of Nar Shaddaa and became arsonists of ten cantinas. Later Ebirdun with sniper shot killed the politician of Nar Shaddaa. Police investigated the lower levels of Nar Shaddaa and found other 150 hundred killed people. Police continued and found 20 skyscrapers destroyed and over 50 houses burned. The Green Rippers made p