21.   Detectives on Wednesday recovered the gun used to kill the owner of the Second Avenue Deli on Monday, police said.

22.   Disinfectants used to kill germs in sterile areas were ineffective against even common bacteria, the agency noted.

23.   Every hour, guns are used to kill four Americans.

24.   For example, worm hemoglobin might be used to kill cancerous tumors by starving the tissue of oxygen.

25.   He fears the U.S. aid will be used to kill people, not to solve problems.

26.   He had told them it was a poison he was using to kill coyotes who were preying on his chickens.

27.   He said authorities had found a knife believed to have been used to kill Sarah.

28.   Herbicides can also be used to kill brush.

29.   However, Paladin traces his fragile state of health to a pesticide spray used to kill wasps discovered in his Ferndale classroom.

30.   I.G. Farben employed slave laborers during the war and manufactured the gas used to kill Jews in concentration camps.