1: The number of law enforcement officers shot to death in the line of duty rose more than 50 % in 2014 , the law enforcement group said in a report released in December . 2: Fifty officers were killed by firearms -- 15 in ambush attacks -- in 2014 , the Memorial Fund said . 3: National Law Enforcement Officers Memorial Fund : Of the 50 , 15 were killed in ambushes .
1: the law enforcement group 2: the Memorial Fund 3: National Law Enforcement Officers Memorial Fund