Philadelphia ? Relatives of Nicholas Berg, the young American entrepreneur beheaded in Iraq, have taken different paths as they’ve searched for solace in the year since his death.

His father, Michael Berg, has intensified his anti-war activities and traveled the globe to meet families of other civilians kidnapped or slain in Iraq. His weekly peace vigil at a suburban Philadelphia courthouse and frequent interviews contrast sharply with the response of his wife, Suzanne, who has grieved privately since her son’s body was found on a Baghdad street on May 8, 2004.

“We’re through the worst of the friction that emerged from my wife’s very private way of mourning and my very public way of mourning,” said Michael Berg, who retired from teaching a few years ago.

Meanwhile, sister Sara Berg has quietly pursued information on her younger brother’s death through the Freedom of Information Act and cautious searches of the Internet, where video of Nick’s murder can still be viewed, deepening the family’s anguish.

“What if I have a curious child who wants to look that up?” said Sara Berg, who does not yet have children. “Is that still going to be available on the Internet?”

Nick Berg, 26, a small contractor who hoped to find work repairing radio towers in Iraq, went missing April 10, 2004, after leaving his Baghdad hotel.

The video that surfaced shows Berg in an orange jumpsuit being held by captors and then being beheaded by a man whom some U.S. officials believe to be Jordanian-based terrorist Abu Musab al-Zarqawi, who has ties to al-Qaida.

Since Berg’s beheading, at least 14 Americans have been kidnapped or gone missing, and at least three killed. Another 200 foreigners have also been seized.

Michael Berg holds President Bush chiefly responsible for his son’s death, blaming what he sees as Bush’s abuse of power.

He also believes the United States was behind the detention of his son in an Iraqi prison from March 24 through April 6, a stay that led Nick Berg to miss his trip home. By the time he was released, the U.S. siege of Fallujah was under way, making travel in Iraq far more precarious.

Sara Berg neither holds Bush responsible nor considers Nick’s death a result of the U.S.-led war in Iraq. Instead, she considers it the premeditated work of terrorists.