The stats in post 5 end with some date 2014, the year of “Hands Up Don’t Shoot” lies by the Obama Administration and general disrespect and attacks on law enforcement by him and his media allies. In the 1950s, early 60s, the media were not actively or tacitly promoting the killing of law enforcement. The changed around ‘68. Look at the chart in post 5 again.
Post 70 shows some stats that seem to support a recent increase in “felonious deaths” of officers.
Check out my post #70 for some helpful links...