His two and a half year term ended when in the aftermath of Special Agent Caitlin Todd's murder at the hands of rogue agent, Ari Haswari, Morrow announced to Leroy Jethro Gibbs that he had been offered the position of Deputy Secretary of the Homeland Security and had accepted it, resulting in Morrow leaving NCIS. Before resigning, Morrow gave Todd the Medal of Freedom and later revealed Gibbs's former girlfriend and partner, Jennifer Shepard was his replacement before departing from the agency for good.