Twenty-seven-year-old Michael Peixoto was attacked and stabbed by a group of men in Mayfield Crescent, Thornton Heath at around 10.30pm on Tuesday, December 19th.
After the attack, the suspects drove off in the car Mr Peixoto had been travelling in, a grey Vauxhall Grand X Elite.
A 22-year-old man was arrested on suspicion of murder on Christmas eve and taken into custody where he remains.
A requested warrant for further detention of the suspect expires tomorrow morning.
Officers are appealing for information.
