Customers and staff at the hotel had a narrow escape after a masked man threw a holdall containing an explosive device into the reception area.
The bomb, which was concealed inside a holdall and had a two-hour timer, was placed directly behind the driver's seat.
"With this economy, it's not the time for real business," he says, passing a holdall of cash to an assistant.
Meanwhile a small bomb was discovered partially exploded in a holdall that had been thrown into the grounds of Hillsborough Castle, the residence of Peter Mandelson, the secretary of state.
The resulting delay of seven days, decomposition of the body in the Summer heat, enclosed in a holdall, meant that vital forensic evidence was lost and Mr Williams' parents could not view their dead son.
The children were discovered in a holdall on Wednesday after their mother Fiona Donnison attended a police station in Heathfield, East Sussex in a distressed state.
Kadiza is described as 5'6" tall, of slim build and wearing black rimmed glasses, a long black jacket with a hood, grey striped scarf, grey jumper, dark red trousers, carrying a black holdall.
The third missing girl is described as 5'6" tall, of slim build, wearing black thick rimmed glasses, black head scarf, long dark green jacket with fur lined hood, light yellow long sleeved top, black trousers, white trainers carrying a black Nike holdall.
The Yard said that it had studied videos which emerged following last year's inquest showing how a person could lock themselves inside a sports bag and accepted it is "now proven" that such an event could have happened with the same North Face holdall and padlock in which Mr Williams was found.
An inquest last year found that Mr Williams, whose remains were discovered inside a sports holdall in a bath with no evidence of his DNA on the padlock used to close it, had "on the balance of probabilities" been killed unlawfully in August 2010 while he was working for the Secret Intelligence Service while on secondment from GCHQ.
Photofits have been released of a man and a woman whom police want to question in connection with the death of an MI6 spy found dead in a padlocked holdall in his central London flat.
