Alyssa thought for awhile carefully thinking out her answer before raising her hand. "Professor like the others have said Tom Marvolo Riddle was said to have been the Heir Of Slytherin. He discovered and opened the chamber back in 1942, when he was a Fifth Year student. He was able to take control of the Basilisk as he was the Heir and using that power, he unleashed it on the school, injuring many.

When the last student was killed, they threatened to close down Hogwarts. Riddle didn't want to return to the orphanage, so he framed a third year student, Rubeus Hagrid. Unfortunately, Hagrid was found taking care of an Acromantula and Riddle managed to convince Headmaster Dippett that it was the Acromantula that was responsible for the killings. Hagrid was subsequently expelled from Hogwarts and had his wand broken, while Riddle was awarded a trophy."