Two months on from the fatal shooting of 16-year-old Amaan Shakoor, in Walthamstow, detectives are issuing a further appeal for information.
The independent charity Crimestoppers have also announced a reward of £10,000 for information that leads to the arrests and prosecution of those responsible for Amaan's murder. To give information and qualify for the reward, contact Crimestoppers anonymously on 0800 555 111 or through the online form at www.crimestoppers-uk.org
Amaan's family have released new images of him, along with an appeal from Amaan's father, for those who killed his son to be bought to justice.
Amaan was fatally shot in Walthamstow on Monday 2 April and sadly died the following day in hospital.
A post-mortem examination held on Friday, 6 April, gave the cause of death as gunshot injuries to the head.
Police were originally called at approximately 22:00hrs on Monday, 2 April, to Markhouse Road, E17 to reports of shots fired.
Officers and the London Ambulance Service attended and Amaan was found injured along with a 15-year-old boy.
They were both taken to an east London hospital where the 15-year-old boy was treated for non-life threatening injuries.
An 18 year old man [A] was arrested on suspicion of murder on 9 April, and was subsequently released under investigation.
A second man, aged 19 [B], was arrested on 17 April on suspicion of murder. He has been released under investigation.
Detective Chief Inspector Gary Holmes, leading the investigation, said: "Amaan was only 16 when he was brutally murdered and his family are desperate for justice.
"A £10,000 reward is now available from Crimestoppers for anyone who can provide information that leads to the conviction of those responsible for Amaan's murder.
"I understand people may be concerned about coming forward, but I would like to reassure those people that there are measures we can take to protect and support them.
"This tragic and mindless act has stolen away Amaan's life and robbed him of his future. If you know anything about this case, no matter how small, please call us.
"Any information will be treated in complete confidence and could be vital in bringing Amaan's killers to justice."
Amaan's family said: "On the 2nd of April 2018, Amaan was tragically taken away from us. After leaving home to meet friends, he was fatally shot at close range and passed away the following day.
"I will never forget hearing those words as long as I live: "Amaan has been shot". I find it hard to remember a lot after that, it all seemed to happen so quickly. Going to the scene, being at the hospital, talking to the doctors, family and friends arriving at the hospital, being told there was no hope, being told that my beautiful son was surely going to die.
"We love Amaan very much and can't imagine life without him. Although we accept that God gives and takes life, as human beings we find it hard to part with a 16-year-old child who had so much to live for.
"Our lives have been totally changed for ever by those individuals who had no regard for life and the devastating impact it would have on Amaan's entire family. We have been handed a life sentences due to the senseless murder of our beloved child.
"If you are a parent or grandparent you will know the love for a child is unconditional. However painful you think this might be, for us it's a million times worse. Something we would not wish on our worst enemy. If you are protecting these people or know them, recognise the devastation this has inflicted on our family."
Anyone with information is asked to contact the incident room on 020 8345 1570 or via 101 quoting reference 6727/02 April. You can also tweet information to @MetCC.
To give information anonymously contact the independent charity Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org