An autistic man's been jailed for planting a homemade bomb on a busy tube train in London.
Damen Smith, 20, built the device after watching instructions on an Al-Qaeda website.
Smith told police the bomb, which didn't go off, was intended as a prank.
The judge accepted Smith didn't intend to carry out a terrorist act - but says that doesn't alter from the fact he still committed a serious crime.
Watch the video for the full ITV report.
