Johnathan Crane ...the Scarecrow

Straight from Arkham Asylum....

                                                       The Background of Dr. Crane
                                                    Let's start with his Teen Years,.......

                                                    Teased and tormented by his peers...

                                                    So He plots a "Revenge"

Fear...

                               Fear can make one act involuntary without judgement or reason

                                                                and as he grew older....

                                 At This point he Lost it and "the Scarecrow" was Born....