An 18-year old in Oklahoma was arrested after a cab driver overheard him planning a shooting similar to the Columbine High School shooting.

When Timmy Eike was arrested, officers found a shotgun, rifle and 250 rounds of ammunition in his bedroom.

The Columbine High School massacre happened in 1999 when 2 students, Eric Harris and Dylan Klebold, opened fire on innocent students and teachers, killing 12 students and 1 teacher.