He had been employed as a hitman in 2004, to murder Vincent Smart. So travelled from Liverpool to Mr Smart's home in Farcet, Cambs, armed with a knife. But, by mistake, he stabbed and killed Mr Robert Bogle, who shared a house with Mr Smart. Jurors at Norwich Crown Court were told that Glen was a "professional killer" who had a previous conviction for murder.
Sentencing Glen, deputy high court judge Sir John Blofeld said: "As a result of your actions a young man who had a future before him lost his life in circumstances which were terrible." He ordered that Glen remain in jail for the rest of his natural life.