Answer:
Bushranger Captain Thunderbolt was an excellent horseman whose crime was horse stealing. He was sentenced in 1856 to the infamous Cockatoo Island in Sydney Harbour but released four years later on a ticket-of-leave to work on a Mudgee farm. During this time, he stole more horses, and was sent back to Cockatoo Island where he often had to suffer solitary confinement. In September 1863, he and another inmate escaped from the supposedly escape-proof prison by swimming to the mainland.
After he escaped, Ward started bushranging, under the name of Captain Thunderbolt. Much of his activity was around Uralla, a small town in northern NSW country. He sheltered at a rock which became famously known as "Thunderbolt's Rock". After a six-year reign as a "gentleman bushranger", Thunderbolt was shot dead by Constable Alexander Walker in May 1870.