A jury has convicted a man accused of sending threatening messages via Facebook.

Prosecutors said Bethlehem resident Anthony Elonis, a former Dorney Park employee, posted threats that he was going to blow up the park and commit "the most heinous school shooting ever imagined."

A jury Thursday found him guilty of 4 of 5 counts of interstate communication of threats.

His federal trial began in Philadelphia on Monday.

Elonis, 28, will be sentenced in January.

He faces a maximum sentence of 20 years in prison, a fine of up to $1 million, three years of supervised parole and a possible fine.