Jovan Belcher's autopsy report has been released, and it reveals that his blood-alcohol content was more than twice the legal limit at the time of his death. Recall that a sleeping Belcher was pulled from his running car outside of Brittini Glass's apartment by Kansas City police officers at 3 a.m. on the morning of the murder-suicide, and then allowed to return to Glass's apartment in order to sleep. The fact that Belcher's BAC was at .17 five hours later would suggest that he was incredibly intoxicated at the time that he spoke to the police.
Here are the full autopsy reports for both Belcher and Perkins: