Austin was selected over Minneapolis, Boston, Philadelphia and Raleigh, N.C.
The overhaul will create a new power center in the Army.
Cpl. Joseph Maciel was killed in an insider attack, U.S. military official said.
The incident marks the first combat fatality for the U.S. military in Afghanistan since April 30.
The Pentagon has sent some $22 million to North Korea since 1990 for repatriation efforts.
Soldiers from the 1st Security Force Assistance Brigade were shifted from other missions to help.
A Navy official with knowledge of the situation said Murphy had started discussions with the service in an attempt to return.
It marks at least the second time that the Trump administration has looked to the Coast Guard to pay for other Homeland Security missions.
Justice Department insists “zero tolerance” policy remains in effect, but Customs and Border Protection officials say they will no longer refer parents for prosecution.
Three bases in Texas and one in Arkansas have been considered as part of the proposal.