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.
John Wilkes Booth did not die in Garrettâs tobacco barn in 1865 as is commonly supposed. Booth was saved by his brother Knights and spirited immediately down into Texas after the assassination. He lived and worked for many years in Granbury under the alias âJohn St. Helen.â.