EXCLUSIVE — The House Homeland Security Committee launched an investigation into the immigration history of Mohamed Sabry Soliman, the suspect in an attack that targeted Jews in Boulder, Colorado, earlier this week.

House Homeland Security Chairman Mark Green (R-TN) and Counterterrorism and Intelligence Subcommittee Chairman August Pfluger (R-TX) notified the Department of Homeland Security on Wednesday that the committee’s investigation was underway with an examination of Soliman’s immigration status and why he was not deported by the federal government after overstaying his visa, according to a letter that committee leaders sent to the DHS obtained by the Washington Examiner.