beta
I mean idk if he tried to ki** himself or was just tired, but it doesn't make too much sense. 1. Drowning is one of the most suffocating way to go
2. If it was mix of tiredness and drunkness I won't believe he wouldn't get at least a little bit of shock and wake up when going into cold water.
Also it's hard to believe that the person who tires to help people so much would go to work in that state and risk hurting his patients.