Businessman had locked himself in a bedroom before being shotpublished at 14:49 Greenwich Mean Time 23 January 2017
The trial at Chelmsford Crown Court heard that Simms and Bergin believed drugs were being grown at Timothy Mardon's mansion.
After they gained entry, their victim locked himself in a bedroom but was shot through the door (pictured).
He had a serious leg injury and an arterial bleed. Police officers were able to use a tourniquet to stem the blood flow.