On April 15, dual bombs exploded near the finish line of the Boston Marathon in Copley Square, leaving three dead and around 150 wounded. As CNN reported, the investigation is ongoing, but according to federal law enforcement agents, at least one of the bombs was made inside a metal pressure cooker and carried in a backpack. Authorities believe that both explosive devices were small enough to fit into boxes or bags.

Doctors working on the scene believe that the explosive devices contained shrapnel to cause further injury to the victims. Dr. George Velmahos, head of trauma care at Massachusetts General Hospital, reported the presence of "pellets" and "nail-like objects" in the patients he has cared for. Velmahos believes that these metallic fragments were likely part of the explosive devices as opposed to from nearby objects.

In the hectic hours after the explosions, it was reported that officials had located additional devices that failed to go off. This report is now thought to be false, and investigators say that the only bombs were the two that detonated at the marathon. As a precaution, there were several suspicious packages detonated at the scene, but authorities now believe that they did not contain bombs.

Though a party has yet to be held responsible, and there have been no further attacks outside of Boston, authorities across the country are taking action to ensure the safety of their citizens.

Orange County Has A Response Plan Ready
A statement  regarding the events at the Boston Marathon was released by the Orange County Sheriff's department on Monday afternoon.

"Although the tragic incident in Boston, Massachusetts this afternoon appears to be isolated, the Orange County Sheriff's Department is on heightened alert," said Orange County Sheriff Sandra Hutchens. "Our deputies will have an increased presence at local sporting/entertainment venues and other large gathering places."

Hutchens assured Orange County residents that the Sheriff's department has a sophisticated response plan in place in case of a local emergency. Due to the events in Boston, she says that they are reaching out to first responders to ensure that everyone has the necessary resources in case of a similar incident in Southern California.

Kelly Huston, the assistant secretary of the California Emergency Management System, says that she doesn't see a connection to California so far, according to The Associated Press. However, "any shred of information" will be examined.