ORANGE COUNTY, Fla. -- An Orange County teacher stumbled upon a body on school grounds Friday morning. The man's body was discovered on the campus of Northstar High School off Curry Ford Road and Chickasaw Trail (see map).

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AT THE SCENE: Images From Scene Of Body Discovery
VIDEO REPORT: Body Of Murdered Man Believed Dumped At School
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Investigators are calling the death a homicide investigation and are sure the murder did not happen at the school. Instead, they said it's clear the man's body was dumped there.

A staff member at Northstar High found the body around 8:00am, before classes started, and the school made the decision that classes would go on. Meanwhile, investigators are trying to figure out if the killing is related to other violent incidents overnight in other areas of Orange County.

"They're looking into everything that might be related to this case. Because, as you know, we had three shootings last night, two of them fatal, one guy is critically injured. So we've been out all night long and we are looking at every particular angle," explained Jeff Williamson, Orange County Sheriff's Office.

Detectives are not saying how the victim died, but there have been suggestions of some sort of trauma, possibly from a beating. The victim's identity has not been released.