Police are still working to find the gunman who shot a teenager in the back on a south Liverpool street.
The emergency services were called out to the junction of Smithdown Road and Holmes Street in Wavertree, at around 8.30pm on Saturday, 7 February 2015.
Kevin Wilson, 17, who suffered a gun shot wound to the back, was rushed to hospital.
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The young man was pronounced dead a short time later.
Merseyside Police have made 13 arrests in relation to Kevin's death but nobody has been charged with murder.
Kevin’s mum, Jane, speaking to the ECHO last year, said: "We miss Kevin every day, it doesn’t get any easier and the pain doesn’t stop.
"Seeing other children and teenagers in the street makes my heart stop. Seeing a toddler makes me remember Kevin as a toddler.
"Seeing a boy walking to school, makes me remember Kevin’s school years and so on, these are painful reminders that he is no longer with us."
"We all loved and we all miss him so much.
"We are pleading for people to help and come forward with any information they may have, no matter how small.
"Even after all this time we just hope that one day we may get some justice for Kevin."
Kevin was originally from Scotland and had previously lived in Carlisle before moving to Merseyside.
Officers think people in Wavertree, Toxteth and the surrounding communities know key information and have described the murder as "callous".
It later emerged that a thief had stolen Kevin's mobile phone as he lay dying.
Instead of coming to the aid of the dying boy, Curtis Connick, 32, of Hawkins Street, Kensington, helped himself to his mobile phone when he saw it light up in his pocket.
Connick was jailed for three years and three months at Liverpool Crown Court in 2016. Detectives believed he was not involved in Kevin's murder.
Speaking last year Detective Chief Inspector Rachel Wilson, of Merseyside Police, said: “This was a cruel and senseless crime that has left a family devastated and still looking for answers six years on.
“No murder investigation is ever closed and we remain determined as ever to find who was responsible for Kevin’s death.
“We know the answers to solving this and bringing the killer to justice lies within our communities and I would ask that people put themselves in the shoes of Kevin’s mum.
"How would they feel if they knew their loved one’s killer was still free and walking the streets of Merseyside?
“There are people out there who know exactly what happened on that night and we need them to find the courage and do the right thing by coming forward and speak up.
“Any information, no matter how small could prove vital to our investigation and I urge people to share information with police, or anonymously through Crimestoppers on 0800 555 111.”
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