Waffle House murder suspect Travis Reinking is now in custody

BREAKING: Travis Reinking apprehended moments ago in a wooded area near Old Hickory Blvd & Hobson Pk. (CNN)

After a frantic day-long manhunt, the gunman accused of killing four people at a Nashville-area Waffle House is now in custody, police said Monday.

Metro Nashville police say Travis Reinking, 29, unloaded an assault-style rifle at the restaurant in Antioch early Sunday morning.

The tragedy sparked a cycle of shock, grief and anxiety among residents throughout Nashville.

Nashville public schools started "lock-out" procedures Monday while Reinking was on the loose, and police warned residents to keep their doors locked.

But it's not clear what Reinking did during his roughly 35 hours on the run. And the motive for the attack remains a mystery.