A group of Canadian tourists smiled for a photo in front of the Pyramid of the Moon in Mexico, not knowing they mistakenly captured the moment before a mass shooting broke out. Barbara Welsh, of British Columbia, and her friends were on their annual girls' trip, visiting the pyramid at the Teotihuacán site on Monday, when they stopped to pose for a group photo while on their guided tour. In the background of the photo, Julio Cesar Jasso Ramirez, 27, was seen climbing up the stairs of the steep pyramid moments before he would pull out a gun and shoot, killing one Canadian woman and injuring 13. #Teotihuacán #juliacesarjassoRamirez #pyramid #mexico