A London taxi driver drives on the normal lane past the special bus lane on a bridge over the river Thames in central London, Wednesday, Jan. 14, 2015.

A London taxi driver who made bombs targeting coalition troops in the Iraq war was on Thursday convicted in a British court of murdering a U.S. soldier eight years ago.

Anis Sardar, 38, built an improvised explosive device (IED) which killed Sergeant First Class Randy Johnson of 2nd Stryker Cavalry Regiment when it exploded under his armored vehicle outside Baghdad on September 27, 2007.

He was apprehended when the U.S. Federal Bureau of Investigation found his fingerprints on two bombs which were planted in the area at the time, although not the one which killed Johnson.

Sue Hemming, head of special crime and counter terrorism at Britain’s Crown Prosecution Service, called it a “landmark” prosecution which showed that “international borders are no barrier to terrorists in the UK being brought to justice.”

“Anis Sardar is a highly dangerous man who created bombs so large that not only did they tragically kill Sgt Randy Johnson, but they put other lives in danger and caused significant damage to heavily armored U.S. military vehicles,” she added.

“He knew precisely what he was doing and was working with murderous intent against coalition forces.”

Sardar was convicted on the basis that his fingerprints were found on a range of other, similar devices along with those of Sajjad Adnan, whose prints were on the fatal device.

Adnan was previously in custody in Iraq but his current location is unknown.

Sardar is due to be sentenced at Woolwich Crown Court in London on Friday.

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