A Northern Virginia couple says two people threw a large rock or chunk of concrete from an overpass that smashed onto their SUV while they were driving their kids and friends home.⁠ ⁠ All six people inside the vehicle, including two young children, were unharmed. But the family fears it could have been much worse had the rock hit a second later.⁠ ⁠ "You could've killed six people," Dylan Martinez said.⁠ ⁠ "I'd definitely be dead. If they would've held it even more and, God forbid, it would've went through the sunroof where our kids and our friends were. I mean, it could've been really bad," he said.⁠ ⁠ Get the full story at the link in bio.⁠ ⁠ #dullesgreenway #loudouncounty #northernvirginia #drivers #roadsafety