Actor Rob Knox Killed

The British teenager, who plays a character in the new Harry Potter film, was killed on Saturday (May 24), reports The Hollywood Reporter.

London police found Rob Knox, 18, stabbed to death after a fight that took place outside a bar in London.  Five people were transported to the hospital following the brawl.  Among them, a 21-year-old was arrested on suspicion of murder.

Knox played Marcus Belby, a student at Ravenclaw, in the upcoming film Harry Potter and the Half-Blood Prince. 

The film, which is the sixth in the series, will be released in November.