(AGI) Bujumbura (Burundi), Sept 9 - Burundi police arrested thekiller of the three Italian nuns. "The suspect is in our handsand has confessed," announced colonel Helmegilde Harimeshi.Investigators said that the killer acted alone. The third nunwas killed early on Monday morning. The age of the killer isstill unknown. When the man was stopped, he was found with akey to the convent and a cellular phone which belonged to oneof the victims. . .