Authorities with the U.S. Attorney’s Office for the District of Arizona said Quintana was interviewed as part of investigation into the Aug. 25 shooting at a Tucson apartment complex.
A man from Tucson was sentenced to three years of supervised probation for lying to authorities about his role in a shooting that killed four people.
According to Tucson police, 24-year-old Gavin Lee Stansell was being evicted when he fatally shot the county constable, an apartment manager and a neighbor before turning the gun on himself.
Federal investigators concluded that the lower receiver of the firearm used in the shooting was bought by Quintana in November 2021 as he allegedly signed a form stating he wasn’t acquiring it on behalf of another person.
Prosecutors said there was no evidence that Quintana knew Stansell’s intent.