There may be a possible connection between a Tennessee high school shooting this week, and the shooting at Abundant Life Christian School in Madison last month.

Principal Doug Butler outlined changes in a video message to the Abundant Life community posted Thursday on YouTube.

The suspected school shooters in Madison, Wisconsin, and Nashville, Tennessee, may have been in contact through social media, according to ABC News. Police say 17-year-old Solomon Henderson is accused of killing one student and wounding another at Antioch High School on Wednesday before dying by suicide.