Unfortunately, the millionaire banker and son of a Yemeni industrialist had already fled to treaty-free Yemen.

On-edit: Strangled girl was found in the basement area of a posh apartment building in which the banker rented a six hundred pound a week "party pad".

On further edit: It seems the man is Egyptian but fled to Yemen perhaps due to the more favorable extradition situation and also since his father owns or operates the PepsiCola bottling franchise there.

- I believe it is important to make known that this was an intelligent girl,- an energetic, positive and spirited girl who was highly valued among family and friends.

The flatmates having contacted the various recent contacts in Facebook were looking at this particular individual, amongst others, and there was a growing focus on the particular individual. It was his lack of response to direct inquiries and his utterly suspicious and alarming response of erasing his entire profile that prompted the flatmates to immediately contact the police and suggest a homicide as well as a particular suspect.

What might have happened over several weeks during a more normal investigation happened immediately. Well, his guilty behaviors are what spooked the flatmates and certainly they are what caused the police investigators to focus on his apartment building. So "routine investigation" in a certain sense but impressive and speedy success in another sense.

Perhaps its not quite so fascinating as an indication of the speed of life in present day social networks but its still interesting in the field of criminal investigation. Rarely does one have a very strong Prime Suspect prior to a body having been discovered or when a young lady has merely stayed out overnight beyond the time that her roommates consider to be in keeping with her habits.

They keep telling me that life in the electronic age has changed. Well, death may or may not have changed also but atleast investigations of it have surely changed. Can you imaginet the London Metropolitan Police being told: "Our roommate went out clubbing last night, she didn't come home, ... and this is the name and address of the man that killed her".

London Metropolitan Police have arrested a 50 year old man who is thought to have moved the body from an apartment to the basement. Police have not been forthcoming with details concerning his nationality or the allegations against him.

The millionaire who lived in the building is thought to be still in Yemen.

This entire case hinged on the quick actions of the roommates, their checking of FaceBook accounts and the prompt focus on a particular suspect. If routine inquiries had been made sufficient time would have elapsed to have had the body moved further away from the murder site.