As the nation mourns the lives lost in the Newtown, Connecticut school massacre, there's concern that other people may be inspired by Friday's events.
Reports of threats of gun violence have begun to trickle in from different parts of the county.
Maury County, Tennessee
On Sunday, investigators in Maury County arrested 19-year-old Shawn Lenz for allegedly posting a disturbing threat on Facebook, reports HLN's affiliate WKRN.
Lenz is accused of writing this on Facebook: "feel like goin on a rampage, kinda like the school shooting were that one guy killed some teachers and a bunch of students."
Maury County Sheriff Cpt. Jimmy Tennyson says that people saw the post and notified law enforcement.
"We certainly don't want a re-run here in Tennessee or anyplace else," Tennyson added.
The Tennessean newspaper reports bond was set at $757,500. Lenz has not entered a plea on the charges he's facing.
Police arrested 18-year-old Devin Carey a charged him with one charge of inducing panic for allegedly making a threat on Facebook, reports HLN affiliate WXIX.
Court documents say Carey posted that he was so sick of all the comments on the shooting in Connecticut that it made him want to shoot kids himself.
Someone notified the police and he was taken into custody. He is being held on $100,000 bond. He's scheduled to appear at a hearing Monday.
Tuscola County, Michigan
Cass City, Michigan, Public Schools are closed for the rest of this year because of a threat made by a student, reports HLN affiliate WNEM.
Superintendent Jeff Hartel says a student made threats against the student body.
Hartel also says local law enforcement is aware of the threat.
Friday morning, hours before the shooting in Newtown, police arrested 18-year-old Sammy Chavez for allegedly threatening to shoot his classmates, reports HLN affiliate KOCO.
Chavez is also accused of trying to recruit other students to help him lure students into a school auditorium to shoot them.
Chavez is being held on a $1 million bond. He's not entered a plea.