story updated 10:29 p.m.

DALLAS (CBSDFW.COM) – A Balch Springs man was arrested Friday afternoon after posting threats on his Facebook page regarding a potential “mass murder” at Seagoville High School.

Jeffrey Holmes, 21, of Balch Springs was arrested by Seagoville police and officers with the Dallas Independent School District for a Facebook post that said he was “homicidal and suicidal” and there “might just be a mass murder going to take place” that will be “worse than Virginia Tech.”

The post went on with a warning to put padlocks and chains and on all the exits of the high school.

The threat was posted Thursday morning. Despite his arrest there was reportedly a heavy police presence Friday at Seagoville High School.

The social media posts came on the same day as a school shooting in Colorado and one day before the Sandy Hook Elementary shooting anniversary, so authorities took the threat very seriously.

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