She tried to jump from the 17th floor but failed. She wanted to know all the tricks of parkour and decided to make her first lesson … which was to be the last! The 24years old tried to make the leap from 17th floor of a building across the roof of the building, but eventually found in a vacuum. The unfortunate girl was killed in front of her older sister and even four men, police said in St. Petersburg. The men of the group, experienced athletes, they did show their skills and then proposed to the two sisters try. The more he refused, but the unfortunate 24 years old girl accepted the challenge. She forums, ran and jumped into the void … after unable to land safely on the opposite building.