Third arrest made in hunt for killer of academic stabbed on way to work
A third man has been arrested by police investigating the murder of a "brilliant" young academic who was stabbed in a "senseless" attack.
Daniel Young, 30, was on his way to work at Coventry University's London campus on January 19 when he was attacked as he used a popular commuter short-cut in Morden, south London.
Detectives arrested a 37-year-old on Tuesday afternoon on suspicion of murder and he is being questioned at a police station in the south of the capital, Scotland Yard said.
A 26-year-old arrested was also on January 19 on suspicion of murder and wasting police time, while a 35-year-old was detained on January 21 on suspicion of murder. Both are on bail.
Police are investigating whether Mr Young's death may be linked to a non-fatal stabbing of a 23-year-old man earlier the same day, 1.5 miles away in Mitcham.
Detectives hunting for his killer have released CCTV footage showing the final moments before Mr Young was stabbed.
A clip shows the teaching fellow, dressed in a suit and carrying his laptop and a bag over his shoulder, walking along Dorset Road towards the entrance of Kendor Gardens.
He walked into the park at around 8am and was stabbed within minutes. The first 999 call was made at 8.07am, Scotland Yard said.
Appealing for witnesses a week after Mr Young's death, Detective Chief Inspector Cliff Lyons said: "Exactly a week ago today, Daniel left home to go to work.
"He had no reason to suspect he was going to be attacked and there is still no clear motive, or reason, for what appears to be the senseless murder of a brilliant young man.
"I believe his attacker left the park immediately after he attacked him and did so via the Dorset Road entrance. I am appealing for anyone who was nearby and saw something, however insignificant it may seem, to contact the incident room.
"The response from the public so far has been incredibly helpful and both I, and Daniel's family, are very grateful. However, we still need anyone who was in the vicinity of Kendor Gardens and Dorset Road at that time of day to get in touch."
The detective appealed for anyone who might have captured video footage, such as on a cycling helmet camera, private CCTV or a camera on a car, to get in touch.
Officers are sifting through CCTV and are carrying out house-to-house inquiries, both around the park and in the area between the two attacks.
Detective Superintendent Paul Monk said so far there is no description of Mr Young's killer, or the suspect in the first attack, but that the investigation has made "significant strides" within a week.
He said: "It was commuter time, it was rush hour. We know that there would have been people close by, and people came to Daniel's aid very quickly.
"I'm keen to speak to anybody who was in the area at that time, particularly in the vicinity of Kendor Gardens and Dorset Road."
Anyone with information can call police on 020 8721 4961 or Crimestoppers anonymously on 0800 555 111.