Ryan Lemm salutes as he is carried by NYPD officer John McCrossen as he watches the casket of his father,...
Ryan Lemm, 4, salutes as he is carried by New York Police Department officer John McCrossen as he watches the casket of his father, NYPD officer Joseph Lemm, who was killed on duty in Afghanistan, following funeral services in the Manhattan borough of New York, December 30, 2015. McCrossen was Lemm's partner in the NYPD Warrant Squad. Lemm was one of six U.S. troops killed by a suicide bomber near Bagram air base in Afghanistan. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY