According to CNN, New York Police say they have surveillance videos that show a man near the site of the bombing in New York City and the location where a pressure cooker bomb was found four blocks away.
The video shows a man dragging what has been described as a duffel bag with wheels on 23rd Street around 7:50 p.m., about 40 minutes before the explosion.
The video shows the man near the area where the explosion happened, according to NYPD.
Surveillance shows the same man on 27th Street about 10 minutes later with the same duffel bag, leaving it where police found an unexploded pressure cooker, multiple law enforcement sources said.
After the man leaves, the video shows two men removing from the duffel bag a white garbage bag believed to contain the pressure cooker, according to a senior law enforcement official and another source familiar with the video.
The men then walked away with the duffel bag the sources said.
Investigators have not determined if those two men are connected to the man dragging the duffel bag on both streets, the sources said.
Meanwhile, a law enforcement source told Fox News on Sunday that the explosive devices found in Seaside Park, N.J. and New York City NY are believed to be from the same person.
Another federal law enforcement official told the Associated Press that the bomb contained residue of an explosive often used for target practice that can be picked up in many sporting goods stores.
The discovery of Tannerite in materials recovered may be important as authorities probe whether the blast was connected to an unexploded pressure-cooker device found by state troopers just blocks away, as well as a pipe bomb blast in a New Jersey shore town earlier in the day.
Finally, a law enforcement official said federal investigators had discounted a claim of responsibility on the social blogging service Tumblr. Investigators looked into it and didn’t consider it relevant to the case, according to an official who spoke to the AP on condition of anonymity to discuss an ongoing investigation.
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ONLINE NOTE CLAIMS RESPONSIBILITY FOR NYC BOMBING