FBI report: 51 officers feloniously killed in 2014

https://www.fbi.gov/news/stories/2015/october/in-the-line-of-duty-2014-leoka-report-released/in-the-line-of-duty-2014-leoka-report-released

The above chart provides a breakdown of the circumstances under which 51 officers were feloniously killed in the line of duty in 2014; an additional 45 officers were killed in accidents during the same time period. Source: FBI.gov