By CBS3 Staff

DUNMORE, Pa. (CBS) — A school shooting plot was foiled in Lackawanna County after a parent found a disturbing text thread. Police say four students at Dunmore High School were planning the attack on the 25th anniversary of the Columbine massacre in 2024.

Some parents are upset because they say the suspects attended school while police were investigating the plot.

Two suspects are 15 years old and being charged as adults. The other two are facing juvenile charges.