Sirius in his school days was a great prankster along with his 3 best friends. He helped his bestfriends Jeames in his various schemes ot make Lily Evans fall for him. In the end they succeeded. After school he along with James and Lily,(now Potter), Remus Lupin, and Peter Pettigrew joined the order of Phoenix to fight Voldemort and his death eaters. Once they found out that Voldemort was after the Potters they needed to cast the fidelus charm. The Potters wanted it to be him but they switched secret keepers in the end. Peter Pettigrew had betrayed them. EVeryone believed that it was Sirius and he was put in Azkaban for 12 years. He later escaped in his godson, Harrys 3rd year. EVeryone believed him to be after Harry but he was really after Peter who was posing as Scabbers, Ron’s rat. In the end Harry found the tuthe but Peter escaped capture once more. @ years later after Voldemort came back, Sirius was confined to his childhood home as that was the Orders new headquarters. Sirius died saving Harry in the Battle of The Department of Mysteries. He was killed by his own cousin Bellatrix Lestrange. He was a great man and did not deserve to die.