Complex sentence: During his time at Auschwitz, six Czechoslovakian gypsies had attempted escape; five were shot dead at the time, but a sixth managed to avoid apprehension for a week; after his recapture, this gypsy man, too, was shot.
Split into simpler sentences: During his time at Auschwitz, six Czechoslovakian gypsies had attempted escape; five were shot dead at the time, but a sixth managed to avoid apprehension for a week. After his recapture, this gypsy man, too, was shot.