Tom Bower has died at the age of 86. The actor was best known for his roles in ‘Die Hard 2’ – in which he starred as janitor Marvin alongside Bruce Willis in the leading role – and in the historical drama ‘The Waltons’ but passed away in his sleep at his home in Los Angeles on May 30, his brother sister-in-law Mary Miller has confirmed to The Hollywood Reporter. No cause of death has been announced yet for the star, who is survived by his brother Bobby, his children, Viv and Rob and his grandchildren, Nicole, Jonathan, Lucille and Henry. According to his sister-in-law, Tom had been a big suppo…