 His death was the result of actor Arthur Leslie dying from the same cause.He was the first main character on Coronation Street to be written out due to the death of the actor who played them, so it was a huge shock at the time.Out of respect for Leslie's family, Jack's funeral took place off-screen, and his death (unlike those of future characters who were written out for the same reason) was presented as a known fact to the main characters from the beginning of Episode 987 (broadcast 8 July 1970), and did not dominate the storyline.