evidence: Thomas Matthew Crooks, the 20-year-old suspect in the attempted assassination of former US President Donald Trump at a Pennsylvania rally, had briefly appeared in a 2022 advertisement for BlackRock Inc., the company said on Sunday. [...] Crooks, who was killed by Secret Service agents after firing multiple shots at Trump, appeared as an unpaid background student in an ad filmed at Bethel Park High School, where he graduated in 2022. BlackRock, the world’s largest asset manager, revealed this connection in an emailed statement to Reuters. [...] Crooks, armed with an AR-style rifle, had moved across rooftops to find a vantage point to target Trump. Witnesses Ben Macer and Ryan Knight described seeing the shooter before he was killed by the Secret Service.