Officers want to trace the driver of a white car seen in the area at time.
"Rents have been going up in the area over time, " Mr. Mannarino said.
"It just happens that in this particular area and time, the demographics were that these were Asian men, " he said.
Officers would also like to speak to anyone who was in the area at the time and who may have seen a man fitting the description walking around the Dickson Street area.
Carole Cross, who died in 2004 aged 59, was living in the area at the time.
The police said a vehicle was seen leaving the area at the time of the incident.
Police, though, said there were no reports of shots fired in the area around that time.
The police inquiry is now focusing on vehicles seen in the area at the time.
This area at one time was almost totally covered with vineyards I've been told.
Unsolved homicides are being checked, too, to determine if Keyes was in the area at the time.
Police appealed to people in the area at the time, including dog walkers and fishermen, to come forward.
People in the area at the time reported a range of health issues, including stomach cramps, rashes, and diarrhoea.
But police said there were no reports of shots fired in the area at the time of the wreck.
There were no reported outbreaks of food-borne illness related in the Roanoke area at the time of the study.
"So many people have called to tell us they saw Hilton in the area around that time, " Mahoney said.
The Pakistani military has been battling insurgents in the area for some time.
They want anyone who was in the area at the time and may have seen the men to contact them.
The Marine Management Organisation said the Vertrouwen was one of a number of UK vessels in the area at the time.
The NATO military coalition said in a statement that "initial reports" showed no enemy activity in the area at the time.
Jennifer Johnston and her family, from Hatton of Fintray, were skiing in the area at the time of the chair-lift incident.
BBC: Five children injured after ski-lift derails at the Lecht
They are also keen to speak to an elderly couple who were walking their dog in the area at the time.
The recharge is unprecedented and is the highest increase in water levels ever recorded in our area at this time of year.
There are reports that unmanned US drone aircraft had been flying over the area for some time before the explosions were heard.
They have also revealed there was "known paedophile activity amongst a group of offenders in the Cheam area at the time Lee disappeared".
The boys, who cannot be named, have admitted being in the area at the time but have pleaded not guilty to murdering him.
But with a range of approximately 2, 000 miles (3, 200 kilometres) it can loiter over a combat area for some time without needing to refuel.
Boston-area taxpayers need time to finish their tax returns without worry.
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There was a loyalist protest in the area at the time.
BBC: Police car petrol-bombed opposite MP Naomi Long's office
Police said there were a number of people in the area at the time and it is believed the incident may have been witnessed by passers-by.
Police are appealing for the driver of a small dark-coloured car which was in the area at the time of the incident to contact them urgently.
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