Kansas City, Kan. ? A Lawrence man was sentenced this morning to 85 months in federal prison on two counts of using a cell phone in making threats to blow up a school building.

Michael E. Parker, 46, will serve the two sentences concurrently, according to U.S. District Judge Kathryn Vratil.

After he’s released, he will be supervised by the court for three years, during which time he will undergo substance abuse treatment and will be tested for drug use, the judge said. Another term of his release is that he must participate in a mental health program.

In late September, a jury found Parker guilty of the charges. Federal authorities said during the trial that Parker used a cell phone to call 911 and make the threats on the morning of April 19. Nine suspicious calls were made between 5:15 a.m. and 8:09 a.m., some with a voice threatening schools and mentioning a pipe bomb. No specific school was named as a target.

The calls caused Lawrence schools to take extra security precautions and thousands of students returned home. The threats came just three days after the massacre on the Virginia Tech campus.

“Tens of thousands of people were affected by this in a negative way,” Vratil told Parker this morning. “It’s obvious to us that this took a terrible toll on the Douglas County community.”

Lawrence school Superintendent Randy Weseman was among people who attended this morning’s sentencing in Kansas City, Kan.

“I hope this is a strong message to people who have ever considered calling in and making a terroristic threat to schools,” Weseman said. “The system comes down hard on people who do.”