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.
Interestingly, one of the more persistent. myths that has grown out of these. allegations is the one that John Wilkes. Booth did not die in Garrett'sbarn, but. that someone else was killed in his place. It has been charged that government. officials were aware that Booth was alive.