DALLAS, Texas — The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) has filed federal charges of a man who brutally raped an 88-year-old woman inside her Dallas home yesterday — the latest charges are in addition to local charges in connection with the home invasion, according to county records.

Federal prosecutors, citing a federal complaint, say 19-year-old Kristopher Charles Martin Brown broke into the victim's home on Cliffmere Drive around 2:30 a.m. on Tuesday, October 8, 2019, likely through the victim's backdoor.

"He punched her in the face, then brutally sexually assaulted her, the complaint alleges," read a statement from the U.S. Attorney's Office in the Northern District of Texas.

"After the assault, he allegedly dug through her closet and purse, taking money, the keys to a 2007 Lexus RX, and a Remington shotgun," continued the statement. "He then allegedly tied the victim to her chair, disabled her telephones, and told her she would find her vehicle at an address on East Overton Road in five days. He fled the scene in her Lexus."

Dallas police officers observed Brown putting gas in the Lexus at a local 7-Eleven a few hours after the assault. In plain view, the officers observed the stolen shotgun in the rear of the vehicle.

Investigators also matched shoe prints in the victim's backyard to those that he was wearing at the time of his arrest.

Brown was arrested by the Dallas Police Department and charged with aggravated robbery and booked him into the Dallas County Jail where he is being held on a $100,000 bond. ATF additionally charged Brown with carjacking and possession of a stolen firearm, to which, he is being held on no bond.

Brown told police, after being read his Miranda rights, he had purchased the Lexus for $900, and the shotgun, at a complex on East Overton Road.

While undergoing processing by DPD’s Crime Scene Response team, Brown asked police officers if anyone had died, noting that “the old woman got up,” according to the complaint.

If convicted on the federal charges, Brown faces up to 35 years in federal prison.