Points of Light
This noble paladin of Bahamut was the last commander of the Keep on the Shadowfell. The evil influence of the portal to the Shadowfell eventually drove him mad. In a fit of rage, he slew his family and most of the troops under his command. The remaining soldiers managed to lock him in the crypt. Eventually, the Keep was abandoned, but it is thought that Sir Keegan's spirit roams the crypt underneath.