 So he made an attempt to flee , and would have got away somewhere by being placed in a chest , had he not been discovered and slain , at the age of 18 . His mother , who embraced him and clung tightly to him , perished with him ; their heads were cut off and their bodies , after being stripped naked , were first dragged all over the city , then the mother 's body was cast aside somewhere or other while his was thrown into the [ Tiber ] . 
