Despite his mother's cautionary "suicide by cop" call, FBI agents did not charge the then-18-year-old Indianapolis man because "no criminal violation was found" during the bureau's threat assessment.
A community organization said that it hopes the investigation will uncover what the suspect's motives were in the shooting that left eight people dead.
Adams reportedly killed himself on Thursday, the morning after five were left dead in a mass shooting in Rock Hill, South Carolina.
"We give amnesty today, it'll be a hundred million problem in ten, twenty years," Brooks claimed Tuesday.
Alissa's social profiles were unavailable to view on Facebook or Instagram, shortly after authorities released information about the shooting suspect's identity.
Among the Twitter users that mistakenly identified the suspect to be a white male was Meena Harris, Vice President Kamala Harris' niece.
"We didn't know what was going on in his head," the brother of Boulder shooting suspect Ahmad Alissa told the Daily Beast.
Federal investigators are searching the residence of a "person of interest" following the Christmas Day explosion of a recreational vehicle in downtown Nashville, Tennessee.
Law enforcement authorities in Nashville announced Saturday afternoon that they are currently investigating over 500 tips regarding the Christmas Day blast.
The Los Angeles County Sheriff challenged hometown Lakers star LeBron James to double the $100,000 reward being offered by the department for information leading to the arrest of a suspect in the shooting of two deputies in Compton Saturday.
A group on the Christian crowdfunding website Give Send Go amassed nearly a half-million dollars for alleged Kenosha, Wisconsin shooter Kyle Rittenhouse's legal defense - but now they say "Big Tech" has stepped in to halt the fundraising.
William Reeves Durga, 21, shared a video of him dancing in front of his mugshot, taunting police. "Come and get me bi**h," he wrote in the video.
New York City authorities announced Saturday that a 14-year-old was arrested for allegedly taking part in student Tessa Majors' murder last December.
Four incidents occurred in Chelsea, Greenwich Village and the Financial District this month, the New York Police Department (NYPD) said. It released surveillance footage of the suspect.
The El Paso Police Department initially tweeted that there were reports of "multiple shooters" but only had one person in custody.
The Los Angeles Police Department said Eric Holder walked up to Nipsey Hussle and two other men and fired a barrage of shots as they stood outside Hussle's Marathon Clothing Company store.
A black teenager in Papillion, Nebraska, was detained in a police cruiser by authorities as he walked house-to-house volunteering to shovel snow off driveways in what authorities are calling a case of "wrong place, wrong time."
The boy was taken to a children's hospital in critical condition.
A fifth person was shot in the face and transported to Atlanta Medical Center.
A second suspect in the shooting death of a 7-year-old Houston girl has been charged with capital murder, Texas authorities announced Tuesday.
Hania Noelia Aguilar, 13, was abducted from outside her family's mobile home on Monday morning by a suspect wearing a black hoodie with a yellow bandanna over his face.
The alleged kidnapper has an extensive criminal history including violent sexual assault convictions, authorities said.
Authorities said there had been a "credible" sighting of Tafahree Maynard in the vicinity of Snellville, Georgia, in the last 12 hours.
Police have identified one of the suspects, but are searching for a second.
Suspect Darran Bolar is a Level III sex offender who was convicted of a third-degree child rape after assaulting a 14-year-old girl in 1993.