In the photo, that's DeNiro from "Taxi Driver"... Which is a good Scorsese film...though it's pretty violent, and has "adult themes" - so check with your parents, before watching it.
When see it, eventually, you're going to see DeNiro playing a "Lone Nut" - would-be Assassin. He was the model for the Mind Control programming of John Hinckley, Reagan's would-be Assassin. His parents were also family friends of Reagan's VP, George HW Bush, the former CIA Director (also with a series of extremely ODD - direct connections to the JFK assassination).
Taxi Driver in a way, reinforces the myths of "Lone Nut" assassins, which became popular because of the cover-story, on the JFK hit. The quote, "You talkin' to me...???", is a famous line from the film.
LBJ changed the route of the Dallas motorcade, to run through the 'Kill Box' that had been set-up in Dealy Plaza. He was also most likely a serial killer, long before that day... https://covertactionmagazine.com/2023/02/06/was-lbj-a-serial-killer-who-advanced-his-career-by-murdering-at-least-6-other-men-who-stood-in-his-way/