Richard Kray is a notable figure known for his involvement in organized crime in London during the mid-20th century. He was part of the Kray twins, a pair of identical brothers who became infamous for their criminal activities, including extortion and violence. The Krays were prominent in the East End of London and were known for their connections to various celebrities and politicians. Richard Kray, along with his brother Ronnie Kray, was eventually arrested and convicted for murder in the 1960s. Their criminal empire and the subsequent legal battles captured public attention, leading to numerous books and films about their lives. The Kray twins remain a significant part of British criminal history.