The missing 77 minutes between the start of the Robb Elementary School shooting and the police shooting of suspect Salvador Ramos could finally be a little clearer. Texas House Rep. Dustin Burrows, chairman of the special Texas House panel investigating the shooting, said Monday that both Texas Department of Public Safety and Uvalde Mayor Don McLaughlin have agreed to release at least some of the surveillance footage from inside the school. “I can tell people all day long what it is I saw. The committee can tell people all day long what we saw. But it’s very different to see for yourself and w…