He's just playing golf mate! No worries.
"Thomas Matthew Crooks was perceived by the U.S. Secret Service as a “person of interest,” not yet a “threat” after law enforcement saw him acting suspiciously and determined he had a golf range finder, according to Secret Service Spokesman Anthony Guglielmi."

Secret Service director refuses to step down as FBI investigates Trump shooter Thomas Matthew Crooks
U.S. Secret Service Director Kimberly Cheatle’s office says she will not step down as the agency’s director after top Washington lawmakers have called for her removal following an assassination attempt…
www.foxnews.com