If you haven't watched the Paula Zahn special yet, it's worth the investment - there's a confrontation that occurred with Liz that hasnt been the topic a lot of discussion so far that could plausibly be related. Of course there's a lot of other plausible theories too - but this one evaded my radar these four years until now.
The "confrontation" with Sergio's father?
In the episode, Detective Ritchie says it did come up that Liz
POSSIBLY confronted Oscar.
Does Sergio know if a confrontation actually took place?
Was the confrontation about the last paycheck that bounced? or his dad's affairs?
Were there other bounced checks or just the last one?
Quite curious about that and the timing.
When does he start suspecting and stop talking to his father? because His father is at the very first press conference and filmed in the video at the one-year vigil held at Burroughs Park.
In the latest interview with Sergio. He is asked if he suspects anyone. He implicity states NO.
(@4:52)
KHOU: Elizabeth Barraza's husband speaks to Grace White about wife's 2019 death
Can you think of anyone that would want Liz dead?
Honestly, no. It doesn't make sense why anybody would want to hurt her. It just.
It's it. There's no reason why she's she's an Angel to me. She's just. Pure good, you know, she never hurt a fly. She never was mean to people. We were always the type of couple who took the high ground and never like, argued or tried to cause a fight or anything like that.
We were just. Kept to ourselves and our nerdy little lives and had fun together, you know, I can't imagine why somebody would hurt her.
Do you think it's a case that can be solved?
I want it to be. I don't know how they're going to do it. I just hope they do; do it.
What changed since Paula Zahn and the recent KHOU interview? We do know Detective Wyatt has said no one has been ruled out....so why does Sergio no longer suspect his dad?
More questions than answers to that theory. I didn't understand Sergio's theory about his dad thinking he would benefit from Liz's $500,000 life insurance policy unless he had discussed her insurance with his dad.
Other Sources: Paul Zahn episode
KHOU One year Vigil