DARIEN -- Police searched a Metro-North train in Darien shortly before noon looking for a double-murder suspect wanted in Hartford.

Metropolitan Transportation Authority and Darien police halted the 10:52 a.m. train out of New Haven at 11:45 a.m. at the Darien train station and performed a sweep of the train, but did not find the suspect.

Hartford police are currently searching for Rocky Williams, 32, who is suspected of shooting and killing his wife and close friend on Thursday. Hartford police have a warrant for Williams' arrest and a national search is being conducted.

"New Haven police developed information that he may have boarded a train in New Haven and we worked with police up and down the coast and pulled the train in Darien and searched it with negative results," said Nancy Mulroy, spokeswoman for the Hartford Police Department.

Williams is suspected of shooting his wife Alyceson Archer-Williams, 27, and Dean Samuels, 31, both of Hartford. A judge has set bond for Williams'at $5 million.

Williams is facing charges of capital felony murder, two counts of murder, home invasion, criminal violation of a protective order, criminal possession of a firearm and criminal use of a firearm.

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Williams is described as black, six-feet, one-inch tall, 180 pounds with black hair and brown eyes. Police said he has a scar on his right elbow and a mark on his chest.

Hartford police said the weapon Williams used in the shootings has not been recovered and he is to be considered armed and dangerous.

Metro-North Railroad spokeswoman Marjorie Anders said the train continued on to Stamford about 16 minutes behind schedule.

MTA Police Capt. James McKenna said a similar search was conducted in New Haven and they would also perform a search in Stamford.

Police were in the area of the Darien station because of Occupy Darien; an offshoot of the Occupy Wall Street movement.

It's unclear if they would continue to check trains coming into Darien,.

Anyone with information regarding this incident or the whereabouts of Rocky Williams, is urged to contact Sergeant Brandon O'Brien of the Hartford Police Department's Major Crimes Division at 860-757-4089 or to call the Hartford Crime Stoppers Tip Line at 860-722-8477.