The 20-some hours of video and audio footage were set to be released Wednesday alongside other documents from the city's investigation into the officers involved in the 29-year-old Black man's death.
The Biden administration sued on Tuesday to block the $3.8 billion purchase, saying the deal would reduce competition and drive up air fares for consumers.
The suspect expressed admiration for Elliot Rodger, the gunman who killed six people and injured 14 others in Isla Vista in May 2014, according to the DOJ.
The new initiative is a broader effort by the Justice Department that it plans to launch across all 94 United States attorneys' offices over the next year.
The U.S. Justice Department says there are unconstitutional conditions in Alabama's prison system. The government alleges guards use excessive force on men incarcerated in the state's prisons.
The Justice Department told a court it has realized there are more internal documents that it inadvertently failed to disclose before lawsuits over the now-blocked census citizenship question ended.
"The Justice Department upholds the rule of law — and we owe it to the victims and their families to carry forward the sentence imposed by our justice system," Attorney General William Barr said.