GOP: Boston Marathon bombing 'left us with a heavy heart' Newly-nominated Sen. Tim Scott (R-SC), (L) places his hand on a Bible held by his mother Frances Scott as he takes part in a re-enactment of his swearing in by Vice President Joe Biden (R), in the Old Senate Chamber at the US Capitol, January 3, 2013, in Washington, DC. The senator was named to replace former Sen. Jim Demint, who resigned, and was previously officially sworn in on the floor of the Senate to begin the 113th Congress. WASHINGTON, April 20 (UPI) -- Republicans tabled partisan bickering Saturday to mourn the victims of the Boston Marathon bombing and send a warning to those who would attack U.S. citizens. "The Boston Marathon has left us all with a heavy heart and we pray for the victims and their families," said Sen. Tim Scott, R-S.C., in delivering the weekly GOP media address, The Hill reported. "However, while the perpetrators of this act of terror hoped that they could shake the confidence of a city, they have instead only strengthened the resolve of our nation," he added. Scott warned, "There is no corner on Earth, no hiding place in America that will keep us from finding you," ABC News Radio reported. America is at its best during adversity, Scott said, echoing comments by President Obama earlier in the week. "The greatness of America is not seen during times of prosperity, but is crystallized by how we respond to challenges," the senator said. We will stand strong. We will stand united. And we will stand together for Boston. Scott's address came only hours after police arrested Dzhokhar Tsarnaev, 19, an ethnic Chechen and U.S. citizen who is a prime suspect in the bombings. Tamerlan Tsarnaev, 26, his brother and the other suspect, was killed in a shootout with police Friday morning.