[dragnet2]

Did the alleged assassin call his dad before the shooting? Is it possible that is what caused dad to call 911?

[janetjanet998]

This article from last night says after the shooting
Either this article is not correct or he made two separate calls

https://www.msn.com/en-ie/news/world/dad-of-trump-shooter-called-police-after-attack-with-concerns-that-his-son-and-gun-were-missing-report-says/ar-BB1q5NE2

Matthew Crooks realized his 20-year-old son, Thomas Matthew Crooks, and an AR-style rifle were missing shortly after shots were fired at the former president at a campaign rally on Saturday in Butler, Pennsylvania. Three senior law enforcement officials told NBC News that the father then called police

[RummyChick]

that is a plausible reason.

He might have called to give a goodbye. His dad knows he is messed up in the head..worries about suicide.

Or depending on what he knew or suspected could have worried about that Trump rally