Garcia says that Florida Highway Patrol does not reset the time stamp on their traffic cams to account for Daylight Savings Time, so the time shown on the alibi video, 4:15, means the video was actually shot at 5:15 on October 24. which is still within the range of DST. Rather than implicate the husband as a suspect, this would actually further exclude him, since he was, at best, still an hour away from the crime scene more than an hour after the determined time of death of between 1:00 and 4:00.
The third victim is killed by a close-range shotgun blast, and it later seen to be bleeding profusely from the chest, yet her shirt is utterly undamaged by the shot pellets.
The first victim was tied to a tree, and killed while in an upright position. When the FBI arrives, 10 or more hours later, to examine the still-tied-to-the-tree body, there is no sign of lividity, or blood settling and pooling in the victim's lower extremities.
The husband said there were no guns in the house, and the police search later found none, yet the killer keeps his shotgun inside a cabinet in the hallway next to his bedroom, where even a rudimentary search would have discovered it.
The opening scene, the unsub fires a shotgun at a pajama shirt. Three holes are fired completely through the shirt, however there is zero damage done to the tree, even the bark is still intact.
The un-sub, a minor, was left on his own to such a degree that he was able to secure a here-to-fore unknown shotgun, fire it thrice while within earshot of multiple police officers, and return to the company of his family undetected, all within 8 hours of his mother being found dead near his home.
The video "alibi" footage purports to show the husband traveling from Tampa, FL to Tallahassee, FL, via I-10. The footage is location-stamped "I-10 West @ I-19". This intersection of the two interstate highways is in Tucson, AZ, which is a substantial detour from Florida.
The un-sub shot the pajama top and left it hanging from a tree "about a mile" from where the body was found, and did so, judging from the daylight and shadow position, between 10:00 and 14:00. During this time, the crime scene was still being examined by TPD and FBI personnel. They would've heard the three shotgun blasts from only a mile away.
The first victim was found around 6:00, and the FBI team arrived at the murder scene, judging by light and shadows, around 14:00, where they examine the body. No police protocol would allow a dead body to remain tied to a tree for 6 hours while waiting for a profiling team to arrive.