Pasco was a crewmember on the Ortega. (A: Mission to Destiny)
Later he contacted the Liberator upon learning that they were in the system, and asked them to help them find proof of the federation attacking the planet after Kendall thought that pirates weren't attacking. He explained the situation to Cally and Vila Restal, including how the federation scientist didn't want to tell him and Kendall their results. He told Blake to warn the neighbouring systems about the federation. He was arrested by the federation but this was interceded by a minister in the planets government. He was reunited with his daughter but was accused of murder. He learnt that his contact in the government had been working with the federation to gain control. After escaping with the liberator to the neighbouring system, he vowed to tell the independent worlds the truth and when the federation played it's hand free Destiny. (AUDIO: Escape from Destiny)