There are some very strange elements to this case. But first let's go through a scenario.
What if there had not been a garage sale on the morning of the murder? Would the plan of the murderer have been to go to the Barraza house after Sergio left, ring the doorbell, and then shoot Liz before running back to the truck to leave? If that had happened, there would have been much better identification as the Barraza's had a doorbell camera.
There is one element of this case that would really bother me if I was a detective. Supposedly the Nisson Frontier Pro-4X truck was driving around the neighborhood in the early morning hours, supposedly to check out the neighborhood. Yet on the morning of the murder after the murderer shot Elizabeth Barraza they first left heading back to Kuykendahl Road, but then turned around and passed the Barraza house again a minute or two later. People theorize this was to make sure Elizabeth Barraza was dead. Ironically, at that time, she was barely still alive.
Now there is a youtube video that shows after passing by the Barraza house again after the murder, the Nissan Frontier Pro-4X keeps driving around the subdivision missing a road to turn left on to get back to Kuykendahl Road and instead ending up in a dead end cul-de-sac area where it is theorized the truck went off road in some way to get back to Kuykendahl or another road to get out of the area.
Isn't that sort of strange that when the murderer was driving around in the early morning hours, potentially scouting the area and where the Barraza's lived, that they did not think about knowing the exit streets to get back to the main road, Kuykendahl Road? I am not from that area, but even I can tell by looking at a map how easy it is to enter the subdivision to find the Barraza house off Kuykendahl Road. It seemed so strange that the murderer, even with advanced planning, still got lost(or lives in the cul-de-sac area?)
Then there is the gun. If you have watched the surveillance footage of the actual murder, the one thing you can tell is the murderer seems to be familiar with the weapon. I think the murderer used this gun before for other things, like to maybe to go shooting at a shooting range? The strange part is that there is no way once you hear how loud the gunshots are that the murderer did not think that a loud gun like that might attract neighbors to look outside their windows in the morning to see what was going on. Maybe that is why they ran so quickly back to the truck because they knew there was still a small chance they might be recognized even if they already had plans to dispose of the Nissan Frontier Pro-4X.
Even in the movies, it seems like if a police officer has a revolver, people refer to them as old school. I do not know if the murderer is a male or female. With the outfit that was worn, maybe it is a female who thinks they are a male or vice versa? Lastly, I think if anyone had dogs that the loud gunshots might have frightened their dogs. I know that sometimes when fireworks go off that dogs get frightened by the sound. These are my opinions about the Elizabeth Barraza case.