Emergency personnel respond to a report of a person covered in flames outside the courthouse where former US President Donald Trump’s criminal hush money trial is underway, in New York, on April 19. Brendan McDermid/ReutersA man lit himself on fire outside of the courthouse where the Trump trial is underway, two law enforcement sources confirmed to CNN.The man walked into the park across the street from the courthouse, throwing flyers into the air, a senior law enforcement official told CNN. He then pulled something out of a backpack — it was not immediately clear what the item was —…