In recent months, police deaths and police killings have dominated the news — most recently, two cops were shot and killed in Mississippi and protests gripped Baltimore in the wake of Freddie Gray's death while in police custody.

Vocativ mapped out incidents where cops were killed by another person from January 1, 2014 to May 12, 2015, finding at least 102 murders:

Meanwhile, in the same time period, Vocativ found nearly 1,500 incidents where people were killed by the police: