That happened in the area that my Wife is from and she knew the female cop too.
Saw that a bit ago too. Can not believe the storm of Cop Killings this past year. I wish the valiant men and women in Blue all the safety in the world. Dirtbags who shoot cops deserve a bullet on the spot in my opinion. 
I am with you, Cal, this is crazy and needs to come to a halt, before it got started. These aren't "People" who are doing this, they are "Crazed Animals" and you don't waste time with "Crazed Animals", you put them out of their (and Our) Misery!!!!!
Pretty bad, when those who are out there, to protect Us, Need to be Protected! Execution of Cop Killers, cop killers, will ensure that those particular ones, will not be Repeat Offenders.
it doesn't help, but the 2nd killing, was an accident that happened when an old man (78yrs old) made a turn and apparently didn't see the cop.