Metropolitan Police
Hassan Sentamu attacked Elianne as she was on her way to school
A teenager who repeatedly stabbed 15-year-old Elianne Andam in a row over a teddy bear has been ordered to spend at least 23 years in prison for her murder.
Hassan Sentamu, then 17, attacked the schoolgirl outside a shopping centre in Croydon, south London, in September 2023.
Giving him a life term at the Old Bailey, Mrs Justice Cheema-Grubb said: "The pain of her loss to her parents and younger brother is indescribable. She will always remain just 15 - she will never realise the potential of her life."
The court heard Sentamu had a history of attacking girls and carrying knives before he killed the popular schoolgirl outside the Whitgift Centre.
He had admitted manslaughter but was found guilty of murder after a jury rejected his claim that autism affected his ability to exercise self-control.
The trigger for his actions was his "short temper and aggressive tendencies", which combined with his "deliberate decision to carry a knife," the judge said.
As Sentamu was sent down, there were angry shouts from the public gallery.
Andam family
Elianne Andam was repeatedly stabbed while trying to stand up for her friend
Earlier, Elianne's family described their "living nightmare" in a series of statements read to the court.
Mother Dorcas Andam said: "Elianne was my world, she was the kindest most loving daughter I could have asked for; she was vibrant, creative and purposeful.
"She loved deeply, loved to sing, to braid hair always practising new style. Our home was full of her music, laughter and energy. There was always warmth and joy when Elianne was there.
"Now the music has stopped, the laughter has gone - all that is left is a deafening silence that echoes through my life."
Addressing Sentamu directly, Mrs Andam said: "You brutally murdered her in the most humiliating way in broad daylight. Mercilessly killing her on the floor as she begged for mercy. You walked away showing no remorse as if her life meant nothing.
"You did not only kill Elianne, you killed me mentally and emotionally. Your actions were senseless and evil."
The teenager's father Michael Andam said: "I close my eyes and see the horror of what she must have endured – the fear, the pain – and it breaks me over and over again.
"The thought of her final moments torments me – wondering if she was calling out for me, hoping I would save her – but I wasn't there.
"I couldn't protect her. That guilt will weigh on my heart for the rest of my life."