Spinelli tried to contact Prof Pete for help, but through a twist of fate Lulu ended up answering the call for help. Lulu and Spinelli were captured by Alcazar and were to be killed. Jason found out where they were and came to the rescue. Again Spinelli escaped, but not before he gave Lulu some details on his life. Unable to give Jason and Sonny exact details and with her life still at risk since she knew Alcazar tried to kill her, Sonny ordered Lulu to accompany Jason to Oakfield,Tenessesee to search for Spinelli at his grandmothers. Lulu agreed on the condition that Sonny help her figure out who really killed Rick Webber. The mission to Tenessesee was sucessful. Jason, Lulu and Spinelli returned to PC and cleared Sam's name of the stealing police evidence charges. Jason and Sonny then told Spinelli to help Lulu any way he could.
So far he has hacked in to the PCPD files and found out everything he could about Rick's death. He also found about Rick & Monica's affair years ago. Spinelli thinks that Alan killed Rick and let Laura take the blame.
That is all I can think of for now but if you have other questions I can probably try to answer them!