I've seen what you're referring to. I too have thought some of those trickles looked like blood. But the autopsy report doesn't support that. The autopsy report doesn't show any such injury there, and nothing that would have caused bleeding in that area.
I do wonder what was happening in several lengthy gaps between photos--60 seconds, 116 seconds, 86 seconds--all before the final closeup of his face. And another 70 seconds between the closeup of his face and the final seated pose. Then 44 more seconds before the accidental ceiling photo where the camera is moving, according to Detectives Flores and Melendez.
But I doubt he was ever taking a shower at that time--with no soap, not touching his body, and with his arms far above his head. If those who believe he was actually showering would recreate each of his poses, just like in the video, in sequence, I think it would be clear almost immediately that something else was going on. Maybe he was voluntarily posing at the beginning, but one thing he wasn't doing, in my opinion, was taking a normal shower. There is nothing normal about that sequence of photos. Poor Travis. 
One can have premeditation and make a plan even with a lot of unknowns in the mix. One can't know everything. I got a kick out of
dbranam's idea:
:blushing:
But she clearly did think about the roommates. That's probably why she arrived around 4 in the morning, when both roommates would be safely asleep. Because the minute they saw and were able to ID her, she's toast if she tries to murder Travis.
Most young working people don't get home until around 6 pm. But for her to wait so late in the afternoon to kill him, she had to be fairly sure they wouldn't be returning until 6 pm or later. Roommate Enrique Cortez was taking the bus to save money and gas, and he believes he arrived home even later than 6 pm.
Most criminals slip up. Jodi's slip-ups included:
1. She kept the cash receipt from Walmart showing she bought a 3rd gas can. Busted!
2. She filled up the gas cans with her credit card. Separate purchases one right after the other for more gas than her car could hold Busted!
3. She didn't cover her hair tightly and the hair she left on the floor of the hallway had the root bulb attached, showing it hadn't been there long. Busted!
4. She slit his throat, which caused so much blood to gush her hand slipped on the bloody knife and cut the inside of her fingers, so that
5. when she lost her balance (from running into the camera on the floor) she left a handprint consisting of a mixture of her blood and Travis' blood. Busted!
6. She left the camera AND the memory stick behind. Busted!
Detective Flores told her he's never had a case with so much evidence. So much. That's he's convicted people with less evidence.
There is also a ton of circumstantial evidence, from
- the rental car location 100 miles away to
- insisting on an inconspicuous color car
- turning off her phone for something like 20 hours to
- showing up 24 hours late to Ryan's house to
- dying her hair brown to
- using a gun of the same general description as reported stolen just days earlier from her residence
- Travis' friends fingered Jodi in the 911 call as the likely murderer
And on and on. If this jury doesn't convict her of felony murder, I'll lose faith in the justice sys...oops, too late, lost that quite a while ago.
However, KatieCoolady has faith that THIS jury will come to the right verdict.
:jail:
. (Ice always wanted to use that "son" thing in a sentence).
