Family calls for help over 'jogging' student Tooting stabbing
The family of a student who was seen "jogging" after being fatally stabbed in the back in south London have appealed for help to find his killer.
Lewis Elwin, 20, collapsed on Penwortham Road in Tooting on 18 April after he was seen running away from Moyser Road at about 15:45 BST.
"If our community continue to stay silent then Lewis's senseless murder would have been for nothing", his family said.
A reward of £10,000 has been offered.
Mr Elwin's family said they were "still in shock" following the student's death a week ago.
Police believe the 20-year-old had already been attacked when he was seen jogging, but they had "limited information about events that day".
Det Ch Insp Diane Tudway said he was killed on a "busy residential road...and I am confident more people would have seen or heard something".
The charity Crimestoppers is offering the reward for information leading to the arrest and conviction of those responsible.