u.s. secret service investigate facebook post missouri state sen. maria chappelle-nadal d-university city state hope trump assassinate conversation mo state senator maria chappelle-nadal christopher gagn ferguson mo facebook profile claim investigative journalist focus social justice police misconduct prison reform screen shoot save either party chance delete conversation include senator openly hop president trump would assassinate facebook user christophe gagne tell cousin president trump secret service detail gagn comment seem infer cousin force protect president trump sign years service already serve years contract protect barack obama gagn go say truly believe happen sooner late refer assassination president.for obvious reason everyone seem focus mo state senator say openly hop trump assassination secret service make call christopher gagn claim cousin assign protect life president claim assassinate sooner late gagn sort inside scoop know gagn may even tell truth cousin president trump secret service detail sure seem would certainly worth time would take secret service look st. louis post-dispatch chappelle-nadal comment refer president donald trump since remove chappelle-nadal confirm post-dispatch write response another commenter delete mean put absolutely frustrate chappelle-nadal tell newspaper things get change u.s. secret service st. louis field office look office confirmed.kristina schmidt special agent charge tell post-dispatch hypothetically investigations agents try determine intent determine violation federal law refer u.s. attorney primary goal determine intent mean behind schmidt said.according screenshot now-deleted conversation obtain post-dispatch another commenter name christopher gagn write cousin say trump secret service detail post early truly believe happen sooner late write mo democrat lawmaker investigation secret service say hope trump assassinate facebook…but response man claim cousin trump secret service detail could serious threat