Harper Dearing was the CEO of Dorado Hills Investments, a multinational venture capital group that specialized in technology companies and also a terrorist targeting both NCIS and the United States Navy after his son, Evan was killed in an explosion. Dearing's reign of terror and his campaign of terror finally ended in May 2012 when Leroy Jethro Gibbs, the leader of the NCIS Major Case Response Team tracked Dearing down and stabbed the other man with a knife, finally ending Dearing's rampage for good while also resulting in Dearing's death.