If the five-year-old's mental age is also five, and the 60-year-old's mental age is 60, then they both have an IQ of 100: 5/5 x 100 = 100 (average IQ - on age level).
Booth was shot dead in a firefight with Union cavalry troops in a barn in the Virginia countryside on 26th April 1865, after having been on the run for 10 days.
But if John Wilkes Booth was not killed at Garrettâs barn, then what happened to him? In 1865, the government moved quickly to close the books on the Lincoln assassination. The trial of John Wilkes Boothâs co-conspirators resulted in four hangings and three life sentences.