Take that paired with the past drama of Fornell and his daughter, and Gibbs secret regarding Pedro Hernandez becoming common knowledge amongst Team Gibbs, and it wouldn’t be surprising if Gibbs is close to a breakdown.
As for whether or not we’d see that in the 2020 return, executive producer Steven D. Binder had this to say.
Gibbs was forced to put Sarah down, which now puts him in an awkward situation with her young son, whom Gibbs had been mentoring since he met them.