Angel Eyes, your questions seem to be answered by this article, but here's the part I found interesting.
Police say that the gunman, a 42-year-old Doral resident from Argentina, was spouting "anti-Trump" rhetoric and attempted to "lure" officers into an "ambush type attack."
According to authorities, the man (shooter's name withheld per DW policies) who opened fire in the lobby of the resort hotel is a 42-year-old Doral resident who was born in South Africa but raised in Argentina, where most of his family lives. His friend of over ten years, who worked out with him seven days a week at 24-Hour Fitness, described the suspect as just a "regular guy" who did not appear to have any strong animosity toward the president or the government and had never talked about acquiring weapons.
"Why should he have opinions about Trump?" said the friend, Luis David Gonzalez. "He's the President of the United States. He's the right guy for the job. We just talk about the gym, that's it."
https://www.dailywire.com/news/30817/more-details-emerge-about-trump-resort-shooting-james-barrettBut that doesn't fit the narrative.