The number of police officers who die in the line of duty has increased.
The year 2007 is turning out to be an especially deadly year for police.
To date, 170 law enforcement officers have died in the line of duty -- that's nearly a third more than at the same point last year. It's also 17 percent higher than in all of 2006, and there is more than a month remaining in the year.
In fact, this year is on pace to be the worst year for police in decades. And many of the deaths involve cold-blooded murder.
Click here to visit the National Law Enforcement Officers Memorial Fund.
On May 11 in Franconia, N.H., Officer Bruce McKay was in hot pursuit of a suspect fleeing a routine traffic stop. With his squad car camera capturing the drama, McKay cornered the suspect and maced him.
But then the unexpected happens. The suspect opened fire, fatally wounding McKay, before running him over with his car.
In another incident in March, New York Police Department volunteer police Nicholas Pekearo and Eugene Marshalik trail a suspect who has just gunned down a bartender. A surveillance camera tape rolls as the suspect turns, then chases down and executes in cold blood one officer, and then the other.
In 2007, police officers are dying at an alarming rate. There has been a 38 percent increase in the fatal shootings of police this year. There has also been a 15 percent jump in fatal car crashes as police pursue suspects or race to get to emergencies.
"Other than the year of 9/11, we haven't seen numbers this high since 1978, 30 years ago," said Craig Floyd, chairman and CEO for National Law Enforcement Officers Memorial Fund.
Police say the spike in fatalities mirrors the surge in crime many communities across the nation are facing -- much of it spurred by heavily armed gangs and repeat offenders.
What concerns police most is that they are encountering on routine patrols violent criminals who shoot to kill -- often without provocation.
"There's definitely a more brazen cold-blooded criminal on the streets of America today," Floyd said.
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