Greg Jarmon is one of two sons, along with his brother Nick Jarmon, of printing magnate Karl Jarmon, who was killed along with his wife Evelyn. Karl brutalized and terrorized the brothers. One time, Karl dragged Greg to the college dean and slapped him in front of the dean for bad grade, humiliating him and shocking the dean. After Karl and his wife were murdered, they were taken to trial for murder.
They were acquitted and released due to the arrest and conviction of the real killer, Alex Petrovich, at the testimony of his associate Sasha Osinski. Both brothers inherit 10 millions inheritance each (L&O: “The Serpent's Tooth”)