![Mark Twain High School Student Arrested for Making Terror Threat](http://townsquare.media/site/464/files/2019/02/Tyler-Lanier.jpg?w=980&q=75)
Mark Twain High School Student Arrested for Making Terror Threat
A Mark Twain High School student is in custody pending the filing of charges of posting a threat against the school on social media.
According to Ralls County Sheriff Gerry Dinwiddie, his office was notified Sunday evening by Ralls County R-2 School District officials about a threat made against Mark Twain Junior-Senior High School via the social media app Snapchat.
Deputies reviewed the posts and arrested 17 year old Tyler Lanier, a student at the school.
The investigation into the threat continues. Deputies say other adults and a juvenile have been interviewed and additional arrests are possible.
Lanier is in custody pending the issuing of a warrant for first degree terrorist threats.
School was in session at Mark Twain Monday, with extra law enforcement personnel on hand to ease any concerns students and parents may have had about attending school Monday.
More From KHMO-AM 1070, News-Talk-Sports
![Former Center, MO City Clerk Arrested](http://townsquare.media/site/464/files/2016/01/cuffs-and-prints1.jpg?w=980&q=75)
![Custodian Arrested for Clark County Terrorist Threat](http://townsquare.media/site/464/files/2018/11/amanda-miller.jpg?w=980&q=75)
![Two Arrests Follow Bomb Threat at Mark Twain High School](http://townsquare.media/site/464/files/2013/09/School-search.jpg?w=980&q=75)
![Ralls County Sheriff Launches New Website](http://townsquare.media/site/464/files/2016/01/keyboard.jpg?w=980&q=75)
![Pursuit Results in Two Drug Related Arrests](http://townsquare.media/site/464/files/2016/02/Hannibal-Arrests.jpg?w=980&q=75)
![Two Taken Into Custody for Questioning by Hannibal Police](http://townsquare.media/site/464/files/2016/01/LedbetterTerry.jpg?w=980&q=75)
![Hannibal Residents Arrested on Warrants, Face Drug Charges](http://townsquare.media/site/464/files/2015/11/Rita-Crea-Gregory-Schwartz.jpg?w=980&q=75)
![80s Theme Set for Ralls County Relay for Life Saturday](http://townsquare.media/site/464/files/2015/04/80s.jpg?w=980&q=75)
![Ralls County Relay for Life Saturday, Marion County Relay June 5](http://townsquare.media/site/464/files/2013/07/Flower-City-Park.jpg?w=980&q=75)