Who shot JFK?

Recently in D.C. I was asked - and answered:

How much aid did President Kennedy earmark for Israel? (1961, $1,000,000)

How much did his successor, President Johnson? (1967, $28,000,000)

What President abandoned the crew of the USS Liberty to the Israeli air-and-sea onslaught in 1967 that killed 34 U.S. sailors? (Johnson)

What President refused to personally bestow the Medal of Honor on Captain McGonagle, who miraculously saved that ship. (Johnson)

(McGonagle is the only Medal of Honor recipient to be snubbed by a President)

Where was President Kennedy assassinated? (Dallas, Texas)

Where was the then Vice President from? (Texas)

Who killed JFK?