WASHINGTON (AP) — President Barack Obama declared Friday night that the capture of a second suspect in the Boston Marathon bombings "closed an important chapter in this tragedy." But he acknowledged that many unanswered questions remain about the motivations of the two men accused of perpetrating the attacks that unnerved the nation.
"The families of those killed so senselessly deserve answers," said Obama, who branded the suspects "terrorists."
The president spoke from the White House briefing room after 10 p.m. on the East Coast, just over an hour after law enforcement officials apprehended 19-year-old Dzhokhar Tsarnaev.
The suspect had been holed up in in a boat in a Watertown, Mass., neighborhood. His older brother, 26-year-old Tamerlan Tsarnaev, was also wanted in the bombings and was killed earlier Friday in an attempt to escape police, authorities said.
The capture of the second suspect capped a frenzied week in Boston, Washington and elsewhere around the country.
Letters addressed to Obama and Sen. Roger Wicker, R-Miss., were found to contain traces of poisonous ricin in tests, evoking eerie parallels to the anthrax attacks that followed the terror attacks of Sept. 11, 2001. And a massive explosion leveled a Texas fertilizer plant, leaving at least 14 people dead and more than 200 injured.
In his remarks Friday, Obama told the people of West, Texas, that "they are not forgotten."
But he focused the bulk of his remarks on the day's events in Massachusetts, saying the nation owed a debt of gratitude to law enforcement officials and the city of Boston, which was paralyzed Friday by the manhunt.
The president's praise for law enforcement was echoed by Republican leaders on Capitol Hill. House Speaker John Boehner of Ohio called their actions "a job well done under trying circumstances," while Senate Minority Leader Mitch McConnell of Kentucky said the nation "marveled at the coordination, skill, and bravery of military, intelligence, and law enforcement officials at every level."