Four years after the Ukrainian town experienced some of the war’s worst atrocities, a 21-year-old planted bombs outside his own apartment building Four years after the Ukrainian town experienced some of the war’s worst atrocities, a 21-year-old planted bombs outside his own apartment building O n a recent evening in March, Bohdan Tymchenko, a quiet and unassuming man from Bucha, logged on to his computer to play the popular video game World of Tanks. Less than two weeks later, he planted two