The shooter may have posted an ominous message on the gaming platform Steam hinting to fellow users that that fateful Saturday would be eventful.<ref>[https://www.nbcnews.com/news/us-news/thomas-crooks-posted-ominous-message-shooting-july-13-will-premiere-wa-rcna162514 Thomas Crooks appears to have posted ominous message before shooting], By Frank Thorp V, ''NBC News'', July 18, 2024</ref> He is said to have hid rifle in advance of the rally.<ref>[https://www.foxnews.com/us/thomas-matthew-crooks-hid-rifle-advance-trump-rally-sniper-attack-secret-service-source-says Thomas Matthew Crooks hid rifle in advance of Trump rally sniper attack, Secret Service source says], ''Fox News'', July 18, 2024</ref> | The shooter may have posted an ominous message on the gaming platform Steam hinting to fellow users that that fateful Saturday would be eventful.<ref>[https://www.nbcnews.com/news/us-news/thomas-crooks-posted-ominous-message-shooting-july-13-will-premiere-wa-rcna162514 Thomas Crooks appears to have posted ominous message before shooting], By Frank Thorp V, ''NBC News'', July 18, 2024</ref> He is said to have hid rifle in advance of the rally.<ref>[https://www.foxnews.com/us/thomas-matthew-crooks-hid-rifle-advance-trump-rally-sniper-attack-secret-service-source-says Thomas Matthew Crooks hid rifle in advance of Trump rally sniper attack, Secret Service source says], ''Fox News'', July 18, 2024</ref> |