A reward of £10,000 is being offered by independent charity Crimestoppers for information that leads to the arrest and conviction of those responsible for the murder of a Battersea teenager.

Matthew Kitandwe, 18, was killed outside his flat in Wayford Street on June 21 when he returned home from South Thames College where he was studying sports. 

Wimbledon Times:

Today, detectives will return to the scene of the murder and to Mr Kitandwe's college to encourage more people to come foward with information. 

A 16-year-old boy was arrested on suspicion of murder on Monday, June 27, and remains in custody.

An 18-year-old man was arrested on suspicion of murder on June 23 and he was bailed to a date in August. 

Crimestoppers is offering a reward of £10,000 for information that leads to the arrest and conviction of the person or people responsible. 

June 21: Updated: Murder probe after South Thames College pupil stabbed to death in Battersea

June 24: Teenager bailed in Matthew Kitandwe murder case

Police were called to Wayford Street at 4.16pm on June 21 and Mr Kitandwe was pronounced dead at 5pm.

A post-mortem examination gave the cause of death as stab injuries.

Detective Chief Inspector Sam Price, of the Homicide and Major Crime Command, said: "Our investigation is progressing well and we have already spoken to a number of witnesses who have come forward and spoken to us, and I would thank them for that. However, I am still very keen to speak to anyone who may know why Matthew was attacked and killed on that day.

"Through our investigations so far we have found no evidence to suggest that Matthew was affiliated to gangs or to crime, and we have found nothing that indicates a motive for his murder. I am hoping that today's activity will encourage someone with information to come forward and speak to us.

"Matthew's family have been left devastated by his murder and they rightly deserve to know what led to his death."

As well as seeking witnesses in Wayford Street at the time of Mr Kitandwe's death, the police wish to speak to anyone who saw an argument between two women near to South Thames College in Wandsworth at about 1.30pm on June 21.

They also want to speak with anyone who saw a group of black men in a silver car around Wayford Street at 11am on June 21. 

It is not known if they are connected with the murder but detectives wish to eliminate them from their enquiries. 

Roger Critchell, director of operations at Crimestoppers, said: "This horrific murder of a young man on his own doorstep, who was set upon by a three men in broad daylight, has left his family totally devastated and the community in shock.

"We need to know who was responsible and why this happened.

"We are offering a substantial reward for anyone with information to contact Crimestoppers anonymously on 0800 555 111 or via our website, where your details are completely untraceable.

"You won’t have to give a statement, go to court or give any personal details."

Information passed to the police will not qualify for the reward. 

Anyone with information is asked to call the incident room on 020 8721 5054 or via 101. Alternatively, they can contact Crimestoppers via 0800 555 111 if they wish to remain anonymous and qualify for the reward.