![Here's everything we know about the Waffle House massacre in Tennessee](https://www.theblaze.com/media-library/image.jpg?id=18908895&width=980&quality=85)
A mass killing at a Waffle House in Tennessee Sunday left four people dead and at least another 7 injured. (Jason Davis/Getty Images)
Four people were murdered and at least seven others were injured when a gunman opened fire inside a Tennessee Waffle House early Sunday morning, according to the Tennessean.
Police last said the suspected killer was seen wearing pants and no shirt. They have drafted warrants for him, presumably to search his vehicle and home.
"Keep your doors locked, keep your eyes open. If you see this individual — if you see a nude guy walking around this morning — call the police department immediately," Metro Nashville police spokesman Don Aaron said, according to CNN.
Regarding the heroic customer who engaged the shooter, Aaron said there is "no doubt he saved many lives by wrestling the gun away and then tossing it over the counter, and prompting the man to leave."
Unfortunately, yes, according to the Tennessean. Aaron said federal and local investigators were aware of him "due to previous interactions."