Several students at Dillard High School said that 15-year-old Amanda Collete was killed by a 15 year-old friend, apparently after an argument.

Police have not released the suspect's name due to her age.

'That girl been crazy ever since elementary school,' said Jasmine Leeks, 17, who identified the alleged killer by name, describing her as a loner with few friends other than Collete.

Authorities said the suspect was caught at an area restaurant along with a small caliber handgun.

Several students said they witnessed the shooting outside a classroom.

'As of right now we believe this to be a single, isolated incident,' said Broward County Schools Superintendent James Notter. -- AFP