The image of a mysterious man on the roof of a building the day of the attack in Boston, has caused a stir on social networks, at a time when everyone wonders who is responsible for this slaughter.
The photo was taken by a young student, Dan Lampariello, who was about 60 feet away from the explosion. At the top left of the picture it can be seen the figure of a mysterious man, who has not been identified. What is strange is that in the picture, the man does not appear shocked over the chaos of the street.
The photo has reached the hands of the Boston police, which have started investigations. Furthermore they have requested information from witnesses through social networks.