Investigators in Spain are looking into a possible economic motive for the killing of Singaporean Audrey Fang.

Finger wrestling, a well-known competitive sport in Germanys Alpine region and neighbouring Austria, originated as a way to settle disputes.

The 66-year-old actor was assaulted late Wednesday (May 8) morning in Manhattan and taken to a nearby hospital with bruising, swelling and bleeding to his left eye.

Under Spanish law, Mitchell Ong can be detained for up to two years on pre-trial detention. He was arrested on suspicion of killing Audrey Fang, but he has not been charged.