FBI agents arrested a man suspected of shooting ICE agents in a premeditated ambush at the Prairieland Detention Center on July 4.

Agents in Dallas apprehended alleged shooter Benjamin Hanil Song on Wednesday after a weeklong search, the U.S. Attorney’s Office for the Northern District of Texas announced in a press release. Song was charged with “three counts of attempted murder of federal agents and three counts of discharging a firearm in relation to a crime of violence.”