Jennifer McMinn, trapped Monday with a gunman in a law office inside the Nextep building in west Norman, talked politics and history with the man while periodically texting people on the outside that she was OK.

For four hours, McMinn remained calm, occasionally negotiating with the gunman on behalf of two police negotiators who were stationed in a separate room and also were talking to him by telephone.

Devin Rogers, 29, surrendered to police about 4:30 p.m. after first releasing McMinn. Another male hostage later was escorted by police out of the building unharmed. He has been identified as Daymon Capers. A third person, believed to be Tyler Christians, also was found inside unharmed.

Fifty-five others either were evacuated or ran from the building earlier after the gunman entered about 12:30 p.m.