re: Aaron Hernandez found guilty of first degree murder

quote:

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Kraft testified under oath that he spoke with Hernandez when reports first surfaced of Lloyd’s death, and that Hernandez had given Kraft an assurance that he was not involved. Hernandez claimed to Kraft that he had been inside a club at the time that Lloyd was killed, which sounds like a good alibi — except that it raised questions in the minds of jurors as to how, exactly, Hernandez could have known what time Lloyd was killed. “One part, for me, was Aaron’s alleged statement that . . . he was at a club at that time,” one juror said. “We still don’t know the exact time of Odin’s murder, specifically.

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Isn't this a moot point, didn't Hernandez's lawyer admit in closing arguments that he was at the murder scene, but it was his two co-defendants (waiting for their own trial) that actually did the killing?

Also, DNA evidence linked Hernandez being at the murder scene because his saliva was on a blunt?