New U.S. envoy to Libya pledges support TRIPOLI (Reuters) - The U.S. envoy sent to Tripoli following the death of the American ambassador in an attack last month said on Monday the United States remained committed to supporting Libya. Veteran diplomat Lawrence Pope said in his first comments since arriving in Libya last week that the United States would "continue on the path" of ambassador Christopher Stevens, who along with three other Americans was killed in what the United States has called a "terrorist" attack in Benghazi on September 11. "The United States remains deeply committed to supporting the aspirations of the Libyan people as they build a sovereign, stable and economically prosperous nation," Pope said after talks with Deputy Foreign Minister Mohammed Abdulaziz. He said the United States was determined to bring to justice the perpetrators of the attack which killed four Americans. Pope came out of retirement to take up the position of "charge d'affairs," the title given to a diplomat who represents a country in the absence of an ambassador. He had retired in 2000 after a 31-year career as a foreign service officer. He is a former U.S. ambassador to Chad and senior State Department counter-terrorism official. Reporting by Ali Shuaib in Tripoli; Writing by Tom Perry in Cairo, editing by Diana Abdallah