Boy, 16, held over stabbing murders
Detectives investigating two murders have arrested a teenager.
The 16-year-old boy was held on the Salary Brook Trail in Colchester - where Saudi student Nahid Almanea was stabbed to death last June - at about 11am on Tuesday on suspicion of possession of an offensive weapon.
Today, Essex Police said he had now been arrested on suspicion of the murder of Ms Almanea and that of James Attfield, who died after being stabbed more than 100 times in a park in the town in March last year.
The teenager is being held in custody at Colchester police station.
The two deaths prompted fears that a killer was randomly targeting members of the public, after officers said there were "striking similarities" in how they were murdered but nothing to link the two victims.
Mr Attfield, who had a brain injury after being hit by a car four years before his death, was found fighting for his life in the town's Castle Park on March 29 last year. He died later in hospital.
Ms Almanea, 31, was walking to lectures at the University of Essex, when she was murdered on the Salary Brook Trail on June 17.
Speaking at the time, Detective Chief Superintendent Steve Worron said a criminal profiler had assessed both cases.
He added: "T he circumstances of both crimes mean that we must consider the possibility that the same killer or killers are responsible.
"We are continuing to explore this line of inquiry, along with many others, and both investigations are being continually resourced and are receiving equal precedence."
Anyone with information should contact Essex Police on 101 or Crimestoppers anonymously on 0800 555 111.