HOSPITALIZED. Jean Harris, 61, former school headmistress now serving a 15-year-to-life sentence for killing Scarsdale Diet Doctor Herman Tarnower; after suffering a heart attack at the Bedford Hills Correctional Facility, where she has been incarcerated since 1981; in Valhalla, N.Y.

DIED. Pierre Gemayel, 78, courtly, shrewd and strong-willed political chieftain of Lebanon's Christians, a key powerbroker in the country's factional political strife, and father of President Amin Gemayel and his brother Bashir, who was killed in 1982 before he could assume the presidency; of a heart attack; in Bikfaya, Lebanon. He helped found the right-wing Phalange Party in 1936 to protect the interests of Maronite Christians from submergence by Islam and a year later assumed its leadership; he fought French colonialists, Muslim rivals, Christian competitors, Syrians and Palestinians, and he survived several assassination attempts. In the 1960s he held various Cabinet posts, and for the past five months, he had served in the "last chance" government of national unity. His death deprives Lebanon's Christian minority of its most powerful leader at a time when its hold on power is being challenged by the increasingly dominant Muslim community.

DIED. Muhammad Naguib, 83, Egyptian army officer who in 1952 became the country's first President and, briefly, a national hero after a bloodless coup toppled King Farouk; of cirrhosis of the liver; in Cairo. A hero of Egypt's 1948 war with Israel, Naguib was recruited to lead a movement of dissident younger officers, including Gamal Abdel Nasser and Anwar Sadat, aimed at ending the monarchy; after the revolution Naguib was named commander in chief of the armed forces and, later, Prime Minister and President. But he soon ran afoul of Nasser; in 1954 he was forced out of office and placed under house arrest, where he remained until freed by Sadat after Nasser's death.

DIED. Lawrence Shehan, 86, Roman Catholic Cardinal since 1965 and retired Archbishop of Baltimore and an eloquent advocate of civil rights and ecumenism; in Baltimore. He was ordained in 1922, consecrated a bishop in 1945, and named Archbishop of his home town in 1961. He quickly ordered the desegregation of all schools and other institutions under his jurisdiction, and in 1963 took part in the Rev. Martin Luther King Jr.'s march on Washington. A strong believer in reconciliation between Catholicism and other faiths, including Judaism, he spoke in an Orthodox synagogue in 1965 and served in the Vatican Secretariat for Christian Unity.