TULSA, Ok. - Tulsa police are investigating an overnight homicide. Police are processing a house near Second and Lewis where the victim was found about 11:58 Wednesday night. Tulsa Police Corporal Mark Secrist says police detained a suspect near Third and Lewis who had blood on his clothing. Secrist says the victim and the suspect are brothers who apparently had argued just before the stabbing. Police recovered a Samurai sword that may have been the weapon used in the killing.