Boston Marathon Bombing: Were There More Planned Attacks?

Following the Boston Marathon bombings the police set out on a man hunt for Tamerlan and Dzhokhar Tsarneav. The two brothers were responsible for the bombings and now police have revealed that the pair had planned more attacks.

Police Commissioner Ed Davis said the stockpile suggests the marathon attack was intended to be just the first in a series. Authorities have recovered a deadly arsenal of weapons belonging to the brothers; these weapons included homemade pressure cooker bombs, grenades, guns and hundreds of rounds of ammunition.

When officers conducted a search of a home in Watertown they discovered serious weapons at the residence.

"We have reason to believe, based upon the evidence that was found at that scene -- the explosions, the explosive ordinance that was unexploded and the firepower that they had -- that they were going to attack other individuals," Commissioner Edward Davis told CBS's Face the Nation on Sunday.

While investigating the scene following the firefight, police discovered more than 250 spent rounds of ammunition were found at the scene, and that the ground was "littered with unexploded improvised explosive devices that we had to point out to the arriving officers," according to Davis.

Another explosive device was also found inside the SUV that the brothers had carjacked. This same SUV was driven by Dzhokhar while fleeing the scene, in the process of his escape the younger bombing suspect struck and killed his older brother, Tamerlan.

Police apprehended Dzhokhar on Friday evening after almost 24 hours on the run following a week of terror in Boston.