Video from previous coverage.

MASON, Ohio (WXIX) - A Mason man accused of making and detonating bombs, including one found at a sports complex, has pleaded guilty in the case.

James Phillips, 21, pleaded guilty Wednesday to illegally transporting explosive materials, according to United States Attorney for the Southern District of Ohio Dominick Gerace II.

The FBI’s Joint Terrorism Task Force arrested Phillips on April 17 after he possessed a dangerous, destructive device, according to FBI Cincinnati Special Agent in Charge Elena Iatarola.

Federal officials say the case dates back to April 2024.

Phillips was originally charged with “Possession of an Unregistered Firearm (Destructive Device).”

Federal officials have said Phillips had an improvised explosive device (IED) that Lebanon

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