Jason Valentin, 35, of St. Louis is accused of using his Twitter account, @jdstl314, to threaten to kill police.
Valentin was charged after admitting to posting threats.
Police say that one of the threats included causing an explosion at the St Louis City Justice Center.
Valentin is charged with 10 counts of making a terrorist threat. The probable cause statement says he is the sole poster using that Twitter account. Many of the tweets he posted included language like, “Kill a pig Night.”