senseless

"Our world was shattered, and our hearts were broken by the senseless and violent loss of our beloved daughter, Elianne Andam," he said on behalf of the family outside the Old Bailey.

Mr Wallendorf's mother, Sally, told the judge in a victim impact statement that she had gone through a "tragic, senseless nightmare".

"Our schools will provide support to any of the students who may be affected by this senseless violence."

"It's sad that a terrorist attack took him...no family should ever have to bury their son, especially for something so senseless."

They described his murder as tragic, unexpected and senseless, and committed "for no reason at all".