It will come down to how good his lawyer is and is Jussie willing to take his advice.
If he listens to his lawyer he'll say as little as possible.
Unless his lawyer tells him: "I've cut a great deal for you. Spill your guts out on Heels-up, Spartacus and insane Maxine, and you only have to spend 1 year in Illinois prison, and 3 years in Club Fed, otherwise, you're looking at a decade in the fun house."