An investigation led authorities to an IP address in MI and police in Port Huron, Mich., detained a 14-year-old boy, who admitted to writing the threat.
The detectives called police in MI, who immediately drove to the house where the threatening message originated.
The Port Huron Police Department said the boy was directing his threat toward his middle school. His mother had two rifles in the home.
With the shooting at Marjory Stoneman Douglas High School in Parkland, Florida, still fresh on his mind, the football player immediately alerted his assistant, Shannen Moen, who tracked down the comment and called 911.
Moen, who was then in Boston, contacted the police who sent officers to Moen's house to see the screenshot of the threatening comment.
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As noted by Nelson, Moen and Edelman are now trying to track down the person who informed him of the threatening message - wanting to show their thanks for potentially stopping a massive tragedy. "With the emotions of what happened, and I have a kid now, I said, holy Toledo, what is going on?"
"Any time someone makes a threat to shoot up a school or building", Port Huron Police Capt. Joseph Platzer told the Times, "we take it very seriously".
Instead of just brushing the message off, Edelman took it upon himself to contact his assistant Shannen Moen about the unsafe threat.
"When I told Julian, he was in shock", Moen told The New York Times.
"Thankfully, this kid said something", he said.