A suspect, who was identified from two videos taken before Monday’s marathon, was arrested, CNN initially reported.

But now the network is saying there has been no arrested.

CNN reported that one video was surveillance footage from a nearby Lord & Taylor department store and the other was taken by a Boston TV station.

Details of who the suspect  have yet to surface.

Pres. Obama at press conference/white house file photo

WASHINGTON — A letter addressed to President Obama containing a substance that initially tested positive for the toxin ricin was intercepted Tuesday by authorities at a remote White House mail screening facility, according to the FBI.

The letter follows the discovery Tuesday of a ricin-laced letter sent to Sen. Roger Wicker (R-Miss.) and came as authorities were investigating suspicious packages in and near the offices of members of Congress.

Edwin Donovan, deputy assistant director of the U.S. Secret Service, did not identify the substance. However, he said the Secret Service is working closely with the U.S. Capitol Police and the FBI.

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Steve Neavling

John Edward Stevens, a prolific bank robber who once was on the FBI’s Most Wanted list, had just finished up a 25-year-prison sentence when police said he struck an Oakland bank and fled with a bag of cash in a stolen car, NJ.com reports.

Police said Stevens, 59, wasn’t out of prison for two weeks when he brandished a gun at a bank in Oakland and demanded money.

Stevens was arrested in a stolen car, and police found a bank bag with more than $4,000 in cash and a handgun.

Stevens served his prison sentence for robbing 25 banks in eight states.

Columnist Joe Davidson

This time it’s Boston.

As they did with bombings in New York City and Oklahoma City, and many lesser-known crimes every day in cities all over the country, agents of the Bureau of Alcohol, Tobacco, Firearms and Explosives, better known as ATF, rushed to the scene. Their specialized expertise and training will be critical in catching the Boston Marathon bomber.

But while the nation relies on ATF to help nab such culprits, it is an agency often overlooked by those outside of law enforcement and one that gets little of the respect it deserves from official Washington.

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Steve Neavling

The FBI is investigating a letter sent to Sen. Roger Wicker after it initially tested positive for ricin, a toxic and potentially deadly substance, Fox News reports.

The letter never made it to the Mississippi Republican because it was intercepted at an off-site mail screening facility.

The letter will be further tested after initial field tests came back positive for ricin.

Police said they suspect who sent the letter.

“The person that is a suspect writes a lot of letters to members,” McCaskill said.

Richard DesLauriers

As special agent in charge of FBI’s Boston office, Richard DesLauriers is leading the joint investigation into the Boston Marathon attacks.

The 52-year-old Massachusetts native doesn’t have a long track record of busting terrorists, but colleagues told Time magazine DesLauriers is a driven, professional and skilled investigator who cut his teeth running operations against foreign spies.

“Rick is the real deal,” David Kris, former Assistant Attorney General for National Security during the Russian roll-up, told Time. “He’s very, very good, extremely methodical and organized.”

DesLauriers, a 25-year-veteran of counterintelligence experience, began spy work quickly after becoming an agent.

One friend describes him as a “good Catholic boy.”