Increased security, additional barriers in place for NYC Marathon

Increased security and additional concrete barriers will be set in place for the upcoming  New York City Marathon, officials say.
The eight people killed in a truck driver's rampage were honored with a nighttime walk down the riverfront esplanade where the victims died as both investigators and terror-weary New Yorkers tried to make sense of the crime.
Some of the marchers carried candles Thursday night. Others pushed bicycles in solidarity with the victims, who were cut down on a bike path that runs the length of Manhattan's waterfront.
The walk took place hours after the city began installing protective barriers along the path.
In addition to barriers, there will also be a larger police presence at the marathon on Sunday, officials say.