He was born in Derp Town.His parents didn't like him so they punish him when he was growing up.Even his family members have to punish him to!When the Derpy killer was older he found out his power!In the middle at the evening his parents and his family members started to punish him...He use his power and KILLED them all...He started to destroy to WHOLE town...

That took so long to type that whole thing

Wait...IT'S SUPPOSED TO BE "BACKGROUND STORY OF THE DERPY KILLER"

nvm

Why am i acting stupid...