SAN FRANCISCO — A federal grand jury has indicted Jose Ines Garcia-Zarate, the man found not guilty of murder last week in the 2015 fatal shooting of Kate Steinle, authorities said Tuesday.

The Justice Department and the Bureau of Alcohol, Tobacco, Firearms and Explosives announced it is charging Garcia-Zarate with being a felon in possession of a firearm and ammunition and being an illegally present alien in possession of a firearm and ammunition.

Garcia-Zarate, who is currently in custody on state charges after last week’s verdict, could face up to 10 years in jail if convicted on either charge, after consideration of s federal sentence-imposition statute and other guidelines.

Assistant U.S. Attorneys Hallie Hoffman and Shiao Lee will prosecute the case, which results from an ATF investigation, officials said.

A San Francisco jury only convicted Garcia Zarate of a state charge of being a felon in possession of a firearm after acquitting him of murder and assault for the July 1, 2015, shooting on Pier 14 in the city’s Embarcadero district. The state conviction carries a maximum sentence of three years in jail. He has been in jail since the day of the shooting. His public defender Matt Gonzalez said Garcia Zarate will ask a judge to toss out the state conviction.

Earlier Tuesday, San Francisco district attorney George Gascon defended the handling of a murder trial that ended with Garcia Zarate’s acquittal.

Legal experts say prosecutors overreached by asking for a first-degree murder conviction because the fatal shot ricocheted off the ground, supporting Garcia Zarate’s defense that the shooting was an accident.

Gascon also called President Trump a “madman” for a series of tweets deriding the verdict.

The Associated Press contributed to this report. Contact George Kelly at 408-859-5180.