This was really sad to hear.
I had the honor to be Mr Foster´s host when he visited Finland together with his lovely wife Kaethe 10 years ago, back in 2004.
He was a real gentleman. We exchanged letters and postcards ever since their visit.
For those who are interested, you can read the lecture he gave at the Finnish Aviation Museum on the 60th anniversary of the D-Day, 6th of June, 2004 here:
http://www.virtualpilots.fi/hist/WW2...BobFoster.html
Respectfully,
Raimo Malkamäki