Anthony Williams, 33, appeared at a pre-trial review at Cambridge Crown Court via video link from Rampton Hospital. He pleaded guilty to 12 counts of wounding with intent and two counts of attempting to wound with intent. The incidents relate to a stabbing on a Doncaster-London train on 1 November and earlier events in Peterborough and London.
He also admitted affray, theft of knives, and several weapons and assault charges covering multiple days and locations. However, Williams has denied 14 counts of attempted murder. These include 11 counts related to the train attack and three counts in Peterborough and at Pontoon Dock DLR station.
Prosecutor Christopher Paxton KC told the court the guilty pleas do not resolve the indictment, so a trial will proceed. The trial is expected to last six weeks and is due to begin next week.