A London court has found a British man guilty of making a roadside bomb that killed a U.S. soldier in Iraq in 2007.

Anis Abid Sardar, a 38-year-old taxi driver, was accused of assembling bombs in Syria that were planted on the western outskirts of Baghdad that year.

Prosecutors said one of the devices killed Sgt. 1st Class Randy Johnson of 2nd Stryker Cavalry Regiment. Johnson, from Washington, D.C., died after his armored vehicle struck a bomb on Sept. 27, 2007. Four other soldiers were injured.

Sue Hemming of the Crown Prosecution Service said Sardar was a "highly dangerous man" working with "murderous intent against coalition forces."

Sardar was convicted Thursday of murder and conspiracy to murder.

He will be sentenced Friday.