After a public outcry, a Tennessee judge has revoked a $2 million bond (A$2.6m) set for the man accused of fatally shooting four people at a Waffle House restaurant, while police tried to discern a motive for the attack.
The Nashville district attorney's office was "inundated with calls" on Tuesday morning from angry members of the public saying there should be no possibility of the suspect, Travis Reinking, being released from jail, spokesman Steve Hayslip said.
"The fact that he might be able to bond out set that fear and panic back in their hearts again," Hayslip said.
Reinking, a 29-year-old construction worker with a history of erratic brushes with law enforcement, was captured in woods on Monday after more than a day on the run. The original bond had been set by a night court magistrate, Hayslip said.
Police say a nearly naked Reinking opened fire with an AR-15 rifle at a Waffle House restaurant in Nashville at about 3.30am Sunday, then fled the scene. The gunman, who began shooting outside the restaurant and then moved inside, aborted his attack and fled when a customer, 29-year-old James Shaw Jr, wrestled the rifle from him in what authorities called an act of heroism.
"We don't know why he went into the Waffle House," Metropolitan Nashville Police spokesman Don Aaron told reporters on Monday.
Reinking, who police said had a pistol and ammunition in a backpack when he was arrested, was not talking to police. His motive remained unknown, police said at their last briefing on Monday.
Previous brushes with law enforcement show that Reinking appeared to struggle with delusions of being stalked by people, including popstar Taylor Swift.
Former colleagues at a crane company where Reinking worked in Colorado told and investigator this week that Reinking was intelligent and quiet, but they worried about his mental health.
They described him as a loner who often played video games, especially ones that involve shooting, and that he was obsessed with Swift.
Reinking told everyone he was gay, which two colleagues said confused them because he insisted that he would marry Swift.
The US Secret Service said it arrested Reinking in Washington in July 2017 for attempting to get into the White House.