Mail bombs

Name(s): 
Parcel bombs
Letter bombs
Incidence 
By mid 1993, investigators in the USA continued their already 15 year search for the individual or group sending parcel and letter bombs, consistently distinguished by the initials "FC", to various individuals throughout the country. Over the 15 year period, 1 person had been killed and 22 had been injured by the aforementioned parcels.
Type 
(E) Emanations of other problems