Konstantin was a very skilled handyman as a hobby. He was an engineer. He was participating in developing GPS systems for Russian satellites to orient in space. He loved hiking and backpacking. I started to backpack with him as a part of a big group when I was 10. We used to backpack in Caucasus Mountains for a month every summer. He loved me very much and always supported me in everything.
With love,
from his daughter Juliya