Veda Washington-Abusaleh, Sterling's aunt, was in tears after meeting.
"When you see those other. videos of Blane Salamoni killing Alton Sterling, you'll cry again", Sandra Sterling said.
Officer Blane Salamoni shot and killed Mr Sterling during a struggle outside a shop where the 37-year-old was selling homemade CDs.
Family members of a black man fatally shot in a struggle with two white police officers are railing against a decision by the state attorney general to not prosecute the officers. The shooting sparked protests in the state capital days later.
Paul said audio and visual evidence, including footage from body-worn cameras on the night of the shooting, will be released to the public.
During a 90-second encounter, Salamoni told Sterling, "I'll kill you, bitch", before the officers told him to put his hands on the hood of the vehicle. The owner told reporters that though Sterling was carrying a handgun in his pocket or waistband, he never had it in his hands. As a convicted criminal, Mr Sterling could not legally carry a gun. At issue in the investigation was whether Sterling was reaching for the weapon, as officers claimed, when he was shot and killed.
Federal authorities concluded there wasn't enough evidence to prove Salamoni or Lake willfully deprived Sterling of his civil rights, or that the officers' use of force was objectively unreasonable.
The LA Attorney General says officers tried to make a lawful arrest of Alton Sterling in Baton Rouge.
State investigators received the case in May 2017 after the U.S. Department of Justice announced it would not be pursuing civil rights charges against the officers, reports CBS affiliate WAFB.
"The Louisiana Department of Justice can not proceed with a prosecution of either Officer Lake or Officer Salamoni".
At the close of that investigation, the justice department said it found "insufficient evidence to support federal criminal charges" against either officer.
FILE - In this June 27, 2017 photo, Ronald Smith gets on his bicycle after stopping at the Triple S Food Mart, where Alton Sterling was shot by police one year ago, in Baton Rouge, La.
A Reuters photograph captured Iesha Evans in a standoff with police. "They took a father away", she said. Baton Rouge Police Chief Murphy Paul said Tuesday that his department still intends to complete disciplinary hearings for the officers, including releasing findings such as dash-cam video.