Sniper Kills Passer-by, Wounds Two Others

Police were trying Thursday to learn why a man launched a sniping spree from his apartment window, killing one passer-by and injuring two others before officers wounded him in a hail of gunfire.

The gunman, identified as Krzysztof Sulak, 31, who recently emigrated from Poland and speaks almost no English, barricaded himself in his apartment Wednesday, police said. He was hospitalized in serious condition.