There were two similar crashes.
The heart/lung survivor was killed in a mid-air in Wales with a light, I believe it was a twin, engaged on illegal low flying. He was on his first post-op flight in a Jaguar. I am not sure if he was intended to return to flying or a 'final' flight prior to grounding. The civvie used to take aerial photographs of peoples homes on spec and then try and flog the pics.
Low flying, 150 feet or less, with pilot hand held photography.
The other incident was just south of Finningley. Mid-air with a Tornado and a light aircraft out of Gamston. I do not think there was any blame attached to the military aircraft and I cannot recall the findings.