Hi Rene,
Oh ye of little faith.....should find him here.
http://norav.50megs.com/photo3.html
I notice one of the postings states that his aircraft crashed onto the Durham coast: this is wrong and I have seen it in Mason's 'Battle Over Britain'.
He was escorting a raid by KG 26 to attack the airfield at Dishforth, Yorkshire. Restemeyer was the first to fall when they were intercepted by 72 Squadron: this was some 30 miles northeast of Holy Island which is some 50 miles north of County Durham.
I did write an article on this which appeared in Flypast issue August 2006 and it also explained why there was a crew of three in Restemeyer's Me 110.
Best Wishes.
Robert.