Detectives are still “unclear” about the motive of the “brutal” murder of a 21-year-old man in Battersea two months on.

Police are appealing for witnesses and information after Malachi Brooks was stabbed to death in Surrey Lane on March 28.

See related: PICTURES AND VIDEO: Murder investigation launched after man, named locally as Malachi Brooks, stabbed to death in 'brutal attack' in Surrey Lane, Battersea

See related: 'He wasn't just my boyfriend, he was my best friend, my rock': Tributes paid to murder victim Malachi Brooks stabbed to death in Surrey Lane, Battersea

Malachi was found suffering stab wounds at 1.10am by officers and paramedics, but died at 1.55am.

Detective Inspector John Massey from the Met's Homicide and Major Crime Command said: “At this stage it is unclear why Malachi was attacked in such a brutal manner and we continue to keep an open mind about the possible motive.

“We are still appealing for witnesses and information about what happened that night.

“Did you see the incident or four men in a vehicle acting suspiciously in or around the area in the early hours of March 28?

“Malachi's family have been left devastated by what happened and I would urge anyone with information, no matter how small, to come forward.”

Rashaune Morin, Malachi's sister, said: “These last two months have been the worst nightmare. I wouldn't wish this on my worst enemy.

“There are so many questions that we can't answer and the only person who knows what happened to Malachi and he's not here to tell that story. That's what hurts the most - I know he was scared and I know he was vulnerable.

“No one deserves to be killed or murdered on the streets. No one deserves to take someone's life, and walk free and live life like normal.”

A 21-year-old man was arrested on April 26 on suspicion of murder. He was bailed pending further enquiries and then released with no further action.

Any witnesses, or anyone with any information, are asked to call the incident room on 020 8721 4868. Police can also be contacted via Twitter @MetCC.

To give information anonymously contact Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org