Eyewitness: 'Some were opposed to US cartoon event'
Two gunmen have been shot dead after they opened fire outside a conference on cartoons of the Prophet Muhammad in a suburb of Dallas, US police say.
A security guard was also injured. Police sealed off the Curtis Culwell Center in Garland and evacuated participants.
The event, organised by a group critical of Islam, was offering a cash prize for a drawing of the Prophet.
Eyewitness Stephanie Conway told the BBC there were people who were opposed to the event, but she saw nothing threatening.
04 May 2015