Different Times In Life

This story is about a boy who goes back in time t stop his parents from being brutally murdered on his 27th birthday. But he realizes that in the previous generations their parents were murdered too. He then finds out it's all because of a curse his great great grandma cast on the male side of his family. He figured out why she did this : because her husband's twin cheated with her bestfriend's twin. Jamari then told her the truth and she made it so no generation had twins until her sons in law died of old age. He went back to his 27th birthday but instead of it being just him he had a twin brother.