Richard Strauss thought of his son when chaos and panic erupted at the White House Correspondents Dinner amid gunshots. In the terrifying seconds after an alleged gunman sprinted through a security checkpoint, the DC communications strategist found himself sprawled on the floor of the Washington Hilton ballroom — surrounded by panicked guests as his mind raced to the one thing that mattered most. “It was scary. It was surreal. I thought about my son. I didn’t know what was happening,” said Strauss, a former Clinton operative who was unaware that a photographer was capturing his blank, stunned stare for a image that would land on the front pages of newspapers across the country. One of the most chilling images of the White House Correspondents Dinner shooting incident captured a group of “petrified” guests lying on the floor. Getty Images Another guest, DC “shadow” senator Paul Strauss (D), can be seen laying on his back, while holding his head up at a seemingly awkward angle.…