A 17-year-old boy has become the fourth person to be charged with the murders of two teenagers in Bristol. Max Dixon and Mason Rist were stabbed to death in Ilminster Avenue at around 11.20pm on Saturday, January 27. Avon and Somerset Police said the boy will appear at Bristol Magistrates’ Court on Monday. The boy cannot be named due to his age. Anthony Snook, 44, and two boys, aged 15 and 16, have already been charged with two counts of murder. Chief crown prosecutor for CPS South West Victoria Cook said: “Prosecutors from CPS South West’s Complex Casework Unit have authorised two murder char…