Albus Dumbledore's bad day was about to get worse.
He was in his office when he felt the wards on Potter Cottage go down in a spectacular manner. Not the slow decay that happens when a ward breaker drains them, but something more along the lines of a muggle army tank slamming into a building wall at high speed. Worried that some of this best ward work was taken down like it wasn't even there, he tried to Apparate to Godric's Hollow only to find anti-Apparation wards set up. By the time he had gotten there, he was too late. Peter Pettigrew lay in the front yard of Potter Cottage with a ruined head, taken down with single gunshot. He was the Potters' secret keeper, and Dumbledore could see the Dark Mark on his arm.
As the rest of The Order of The Phoenix Apparated in, he noticed the door to the cottage was open. Cautiously, his wand out, he approached the entrance and saw James Potter lying just inside the doorway, magical residue from an Avada Kedavra still on him. Going up the stairs, he finds Lilly at the second floor landing, also recently AKed. The second floor looks like a Muggle bomb went off in it, and right at the center of the damage is what remains of one Tom Riddle, aka Lord Voldemordt. Even with the extensive damage to the body, one can still see the three bullet holes in the center of his chest, right over the heart. The infant Harry Potter is no where to be found.
As Dumbledore surveys the carnage, he hears Mad Eye Mooney clumping up the stairs. His practiced auror eye inspects the scene. "I'd say from the use of enhanced muggle military weapons, and the precision accuracy, that Riddle came up against a technomage hit team." Moody opined. Dumbledore frowned, and replied "It would appear that some of our American friends were operating on our soil. I shall have a talk with Mr. Evans. We cannot have foreign muggles coming over here violating the statue of secrecy and interfering with the greater good." Before Moody could reply, Dumbledore Apparated away...