The chairman of the commission was Earl Warren, Chief Justice of the U.S. Supreme Court.
LBJ was concerned about the possibility that several different investigations would be conducted and believed a federal commission would solve this problem.
Earl Warren, who had sworn in President Kennedy in 1961 and had been appointed by President Eisenhower in 1953, did not want the position.
It has been written that LBJ basically laid a "guilt trip" on Warren by telling him that his country needed him in this position.
The Commission presented their report to LBJ in the White House.
Most Americans accepted the conclusions at the time but over the years the report has been discredited due to release of many documents through the Freedom of Information Act & by research of so called "conspiracy buffs".