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.
The outlaw Jesse Woodson James killed the actor John Wilkes Booth at the Grand Avenue Hotel in Enid, Oklahoma in 1903 after Booth continually reneged on his oath to never talk about his secret membership in the Masonic-oriented Knights of the Golden Circle (KGC) and to never mention the murder of Abraham Lincoln.