A pro-gun lawyer was shot by his own weapon while visiting a hospital when a powerful magnetic field from an MRI scanner set the pistol off.
Leandro Mathias de Novaes was taking his mother for a scan at the Laboratorio Cura in Sao Paulo in January and entered the facility with a concealed handgun.
Despite warnings from staff to remove jewellery and metal objects in the MRI room, Mr Mathias kept his weapon on his waistband.
The magnetic field from the machine was so strong that the weapon was pulled from his waist and fired off a round, which hit him in his stomach.
The 40-year-old Brazilian was treated in hospital for more than two weeks before he died from his wounds.