A man has been charged over a mass stabbing on a busy train in Cambridgeshire and is also accused of attempted murder after an incident on a different London train earlier that day.
Anthony Williams, 32, appeared at Peterborough Magistrates' Court on Monday accused of 10 counts of attempted murder, one count of actual bodily harm and one count of possession of a bladed article following the attacks on the London North Eastern Railway (LNER) service from Doncaster to London King's Cross on Saturday, British Transport Police said.
He is also charged with another count of attempted murder and possession of a bladed article in connection to an incident at Pontoon Dock DLR station in the early hours of the same day.
Williams appeared in the dock in handcuffs with four security officers alongside him, and spoke only to confirm his name, age and address.
He was not asked to enter pleas and when asked his address mumbled "no fixed abode".
He was remanded into custody and will next appear at Cambridge Crown Crown Court on December 1.
It came as the first picture of the suspect, a CCTV image, emerged today.
Cambridgeshire Police also said three knife-related incidents that could be linked to the Huntingdon train attack suspect happened in Peterborough on Friday and Saturday.
They include a man wielding a knife at a barbers on Friday night, while a 14-year-old boy boy was stabbed in the city centre.
In a statement, the force said: "We are aware of three incidents that occurred in Peterborough on Friday evening (31 October) and Saturday morning (1 November).
"The first incident of a man with a knife at a barbers in Fletton happened at 7.25pm on Friday but was reported to us at 9.10pm - two hours after the incident occurred.
"At the time of reporting the man was no longer there and had not returned, so we did not send officers, but a crime was raised.
"The second incident was reported to us at 9.25am on Saturday again by the barbers in Fletton while the man was still at the scene. Officers were deployed to the location and arrived within 18 minutes.
"Upon searching the area, officers were unable to locate the man or identify him and a crime was raised.
"There was also a third incident that police also believe may be linked which also happened on Friday 31 October at 7.10pm, where a 14-year-old was stabbed by a man with a knife in the city centre. They were taken to Peterborough City Hospital with minor injuries and were later discharged.
"The offender had left the scene when the call was made and despite a search of the area by officers and a police dog, the offender was not identified. A crime was raised and an investigation commenced, with scenes of crime attending.
"We are currently reviewing all incidents in the timeframe to understand whether there were any further potential offences.
"British Transport Police retain primacy for the overall investigation, which will include these three incidents.
"We voluntarily referred ourselves to the IOPC for independent scrutiny of these incidents, as is standard practice in these cases."
In another development Scunthorpe United revealed one of their first-team footballers Jonathan Gjoshe was a victim of the mass stabbing.
The defender is in hospital with non-life-threatening injuries.
Deputy Chief Constable Stuart Cundy said: "The criminal investigation and support for the victims is a priority for British Transport Police.
"Our investigation is also looking at other possible linked offences.
"Following the charges authorised by the Crown Prosecution Service, I would stress the importance of not saying or publishing anything which might jeopardise or prejudice ongoing criminal proceedings, or the integrity of the investigation."
Tracy Easton, chief crown prosecutor for Crown Prosecution Service Direct, said: “Our team of out-of-hours prosecutors worked to establish that there is sufficient evidence to bring the case to trial and it is in the public interest to pursue criminal proceedings.
“We worked closely with British Transport Police to review a huge volume of evidence including CCTV. The number of charges will be kept under review as this continues to progress.
“We know the devastating impact the events on Saturday's train has had and how the incident shocked the entire country. Our thoughts remain with all those affected.”
The LNER staff member, who has not been named, was injured while trying to protect passengers during the attack on Saturday's 6.25pm service from Doncaster to King's Cross.
Transport Secretary Heidi Alexander said: "There are people who are alive today because of his actions and his bravery."
She told Sky News: "He went into work that morning to work on that train service, to serve passengers and he put himself in harm's way.
"He went in to do his job and he left work a hero."
He is one of five people who remain in hospital after the violence on Saturday night.
Passengers have spoken of the horror which unfolded shortly after the train left Peterborough station, with one woman saying she felt “very lucky” to be unharmed after begging the knife attacker to spare her life when he chased after her.
Dayna Arnold, 48, told the Mirror newspaper: "I fell down and I just said: 'Please don't kill me.' Something shifted in his face and he just carried on. He said: 'The devil is not going to win."'
Olly Foster, who witnessed the incident, told the BBC an older man "blocked" the attacker from stabbing a younger girl, leaving him with injuries to his head and neck.
He said other passengers used their clothing to try to stem the bleeding.
Thomas McLachlan, 19, from London, told BBC News he saw people leaving the train "drenched in blood".
Other passengers spoke of hiding in train toilets and the buffet car to protect themselves during the bloody rampage.
