The British banker arrested in Hong Kong for murdering two women in a crime spree apparently inspired by American Psycho left a major clue in his Merrill Lynch email autoreply.

Rurik Jutting was arrested this weekend after police found a dead woman stuffed in a suitcase on the balcony of his high-rise apartment and a second woman dying on his living room floor.

The woman was reportedly alive when police arrived but quickly succumbed to the stab wounds in her neck. Both women were reportedly Indonesian sex workers.

Jutting was reportedly a wealthy jetsetter known for dating "a string of beautiful women in exclusive restaurants across the globe," when he wasn't relaxing on ski vacations or at private members clubs.

But Jutting, who recently quit his job as an equity tader at Merrill Lynch, was pretty explicit about what he was really doing in his email autoreply:

'I am out of the office. Indefinitely. For urgent enquiries, or indeed any enquiries, please contact someone who is not an insane psychopath.'

But despite the disturbing message, police did not begin investigating Jutting until he called to turn himself in Friday.

Jutting was charged with two counts of murder Monday.

[image via AP]