Thai police arrest a 47-year-old Australian man from Ballarat at Suvarnabhumi Airport as they link him to the death of a 17-year-old girl from Kalasin found naked in a suitcase near Pattaya.Surveillance footage shows the man entering a Pattaya hotel with the teenager and leaving alone hours later carrying a large black suitcase; blood was found in the room and fingernail scratches on the suspect indicate a struggle.He is held on suspicion of kidnapping a minor for sexual purposes, intentional homicide and concealment of a corpse; authorities await autopsy results while the man denies killing the girl and faces a possible death penalty if convicted.