A British man has been sentenced to life in prison for making a roadside bomb that killed a U.S. soldier in Iraq in 2007.

Anis Abid Sardar was accused of assembling bombs in Syria that were planted on the western outskirts of Baghdad that year. 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.

The 38-year-old Sardar was arrested years later after investigators found his fingerprints on some of the devices. Prosecutors said he was a "highly dangerous man" working with "murderous intent against coalition forces."

Sardar was sentenced Friday at a London court to life with a minimum term of 38 years.