The SWAT team remains on the scene at Gateway Center in Downtown Pittsburgh.
Police say a man is holding another man hostage on the 16th floor of Gateway Three. It all started just before 8:10 a.m. in Suite 1625 inside Gateway Three.
The suspect is now being identified as 22-year-old Klein Michael Thaxton. Most recently, he lived in the McKeesport area. Police say he was in the military and has a criminal background, but was not an employee of the business.