King (R-Seaford) said Friday morning that federal intelligence might not be enough to keep track of suspects like those suspected of detonating bombs at the marathon Monday.
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Two law enforcement officials told The Associated Press that both suspects had been living legally in the United States for at least one year.
The suspects' local connections and their apparent legal immigration status indicates that overseas intelligence operations and monitoring of communications may not provide enough of a warning regarding homegrown terror operations, King said.
King said local police departments will need more ties to communities and must be able to use information and intelligence gathering operations, like those of the NYPD.
"I think it is essential, because you can no longer count on federal intelligence monitoring chatter or overseas intercepts," he said.
He also believed the way events unfolded overnight with explosives indicated that the suspects wanted to extend their attacks beyond the marathon bombings.
"It looks to me like a second wave Mumbai-style attack," said King. "I can see keeping the guns, but why keep explosives unless you are going to use them?"
One of the suspected Boston Marathon bombers was killed in a shootout with police, and the other remains on the loose Friday morning, after the pair went on a rampage that left one police officer dead and another critically wounded, authorities said.
The AP reported the suspects are from the Russian region near Chechnya, which has been plagued by an Islamic insurgency stemming from separatist wars.
A law enforcement intelligence bulletin obtained by the AP identified the surviving bomb suspect as Dzhokhar A. Tsarnaev, 19, who had been living in Cambridge, Mass.
Three law enforcement sources said the uncle of the bomb suspects confirmed the men were brothers, according to AP.