How did the kray twins die?

The Kray twins, Ronnie and Reggie, did not die together; Ronnie Kray died in 1995 from a heart attack while in prison, and Reggie Kray passed away in 2000 from cancer. Both twins were notorious gangsters in London during the 1960s. Their criminal activities led to their imprisonment, where they spent much of their later lives. After their deaths, they became infamous figures in popular culture, representing the dark side of the British underworld.