President Barack Obama will travel to Boston, Massachusetts Thursday for a service honoring the victims of the Boston Marathon explosions.

The President made a speech Tuesday in the White House pressroom, in his second public statement since the tragedy at the finish line.

He called the incident, "a heinous and cowardly act," adding that the FBI is investigating it as a potential act of terrorism.

"What we don't yet know," he said," is who carried out this attack or why, whether it was planned and executed by a terrorist organization, foreign or domestic, or was the act of a malevolent individual."

Obama stressed that, "we will find out. We will find whoever harmed our citizens and we will bring them to justice."

Among his thinly-veiled threats, the ever-positive president also commented on Americans that showed, "heroism, kindness, generosity and love."

Runners that made tourniquets out of their own clothing, citizens who rushed to give blood, and medical students that went straight to the hospital when they heard the news all exemplified the stories of selflessness, Obama said.

"If you wanna know who we are, what America is, how we respond to evil, that's it," he said. "Selflessly, compassionately, unafraid."

As Obama left the conference room, reporters asked if he would travel to Boston. He did not comment at the time.

Later that day, the White House did confirm that Obama would go to the city to attend an interfaith service, the Wall Street Journal reports.

Obama has traveled to services a handful of times this year, with national tragedies and mass shootings in Newtown, Connecticut, Aurora, Colorado, Tucson, Arizona and Fort Hood, Texas.

In lieu of his visit to Boston, the president was forced to cancel a trip he had planned to visit the University of Kansas on Friday.