Estranged.

Robert’s brother Mac came to Port Charles in 1991. The Scorpio brothers weren’t exactly the best of friends back then, considering Robert blamed Mac for killing their parents and his fiancée while flying the plane they were in. Robert also assumed Mac left him there to die as well.

Mac became the prime suspect when Robert started receiving death threats. The two got into a scuffle on a ship and Mac went overboard. He was presumed dead, but Mac was actually hiding out on a farm in New York. Robert tracked him down and during a stand off, Mac shot someone aiming a gun at his brother.

Before dying, the gunman nicked Robert in the shoulder. Mac brought his brother to a clinic where Robert was given a blood transfusion and the brothers made up.

Take a look at the early days of the Scorpio brothers, complete with Mac’s Australian accent.