ISLAMABAD, Pakistan, June 25 (UPI) -- Police said Tuesday that a close aide to Pakistani President Pervez Musharraf had taken his own life, but Omar Asghar Khan's political allies said the former minister had been killed. "Apparently, it is a suicide, but we also are probing other possibilities, including murder," said Karachi Police Chief Asad Jahangir. Khan, a resident of Islamabad, was found hanging from the ceiling fan in his in-laws' home in Karachi. A note found near the body said: "To all my dear ones: I could not take it anymore. Please excuse me. I am doing this on...