I believe pills can be batch tested. If the pills in Howard's match any that were found (or supposedly found) in Danny's possession, then we're unto something.
It seems no one is doing CSI work on the surroundings...testing the glasses, the food plates etc and they're concentrated on "when did he take them" not where did they come from.
They took blood from Anna at 5:30 am. Hope they saved it because I think Howard gave her something to make sure she stayed asleep.
i know ! i know! pick me! pick me!
Why were there any pills? 'cause druggies are stupid about details when they're HIGH!??! they're so stupid, they'll even go on Larry King Live, where everyone can see they're high, and think they're acting straight! :)
seriously, tho, the best answer probably is, howie baby had the pills in HIS pocket - immediate access at an opportune moment...like maybe 0228 walkie time...imo