So many things about this case are intriguing, which leave me conflicted as to whether this was an accident or homicide. Sorry in advance for the length of the post, there is just so much to consider.
-AA decided at the 'last minute' that she was not going to accompany her husband on a weekend trip to Saskatchewan due to her suffering from migraines. This was supposedly the first time her husband went away with out her during their marriage of several years. To me this suggests that if this was a murder, it was either a random crime of opportunity, or someone who knew about the change of plans took advantage of the situation. She wasn't supposed to be home alone that weekend.
-The neighborhood where AA lived is a bit sketchy. It has a higher than average crime rate and attracts transients. AA was reportedly not involved in a high risk lifestyle, but did geography play a role in her death?
-Despite having migraines AA was able to able to run errands and was using her phone regularly on Friday and Saturday. I would think that going outside, driving, and screen time would aggravate a migraine, so it is questionable to me if her headaches were really as bad as she let on to her husband. Could it have been an excuse to stay home, and if so, why? Was it to care for her pets? Was she hoping to hook-up with someone? Did she not get along with her MIL?
-What was the status of AA & LA's marriage at the time of her death? Reportedly there was no history of domestic violence, and the couple did lots of fun things together, but there was a rumor that AA may have wanted a divorce. Also, AA confided in her brother that she was irritated that her husband couldn't hold down a job. I don't think there was ever any evidence uncovered to suggest that AA or LA was having an affair, but the fact that AA was found deceased wearing 'fancy panties' that her husband is adamant are out of character for her day-to-day use, makes a person wonder. What would motivate a woman whose intimate partner is away, and who is feeling sick, to put on lingerie instead of a more casual, comfortable pair of underwear? Was there in fact another man (or woman) over that weekend?
-AA was using cannabis, and maybe OTC or prescription meds for migraines, and possibly other 'herbal' remedies at the time of her death. Did any of these substances play a role in her death, such as getting dizzy and falling, or engaging in erratic behavior?
-AA was likely on her phone talking to her husband at the exact time the incident that caused her fatality was initiated. IMO this is eerie. He reported hearing their dog bark and then yelp. Then a 'crashing' sound and then the call was disconnected. Even though her husband is not a suspect, I find it suspicious that he didn't do more to check up on his wife after the way their phone call ended abruptly. Knowing that his wife was home alone and suffering from migraines, and suddenly out of touch, why did he not ask her mom or a neighbor to do a welfare check?
-What was the nature of the last phone call that LA had with AA, and who initiated the call? Did they argue? Were they just discussing mundane things, like what they had done that day? Did they normally communicate by phone or more so by text?
-A dining chair was found toppled on the main floor, and AA's phone (with broken screen) was found on the opposite side of the dining table from where the chair was but nothing else was out of place. It makes me wonder if AA was sitting in the chair, talking to her husband on the phone, when the 'incident' began, and if so, how did she get from the dining area to the basement, and get fatally wounded in the process?
-What is the reason that AA's dog, who is said to be quiet, suddenly started barking and then let out a yelp around 7:00 pm on the Saturday? Did someone come in the back door, alerting the dog to bark, and then perhaps kick the dog causing it to yelp? If so, AA may have gotten up from her chair quickly to investigate, causing it to topple or been forcibly removed. But if she still had possession of her phone, why not scream or tell her husband that someone is in the house?
-A witness/neighbor reported seeing a man running near AA's home around the time AA was on the phone with her husband. Did he have any involvement or was it a coincidence? Perhaps he was prowling in the yard but scared off by the barking. When AA got up to investigate she tripped over the excited dog, causing it to yelp and her to fall down the stairs, striking her head on the ceramic piggy bank.
-There is no question in my mind that AA's head struck the piggy bank pictured on the ledge in the stairwell (fragments of it were found embedded in her forehead and it was broken). I do wonder though how it wasn't knocked off the ledge if AA was basically catapulted into it with enough force to cause a fatal wound? How was the wound severe enough to cause her to bleed to death, but not be severe enough to fracture her skull or cause a brain injury? It seems like this should have been a treatable injury yet the amount of blood shed all over the basement was said to make it one of the most gruesome crime scenes ever analyzed by LE.
-Why does it look like (IMO) the blood on the basement floor has been wiped/smeared, and how did the trail of blood droplets on top of the smeared blood occur? Did AA lay bleeding, unconscious on the basement floor for a short period of time and then get up and walk towards the stairs (her footprints were found in blood at the base of the stairwell). If she had the strength/awareness to get up and walk towards the stairs, why not attempt to go up?
-There was no sign of forced entry to AA's home. If this was a murder, was the suspect let in by AA (likely someone she knew and trusted), or did he/she sneak in through an unlocked door? Or did they have a key, and if so, who would have had key access--maybe a previous tenant, family member, or friend?
-If this was a murder, what was the motive? Is there any connection to the social services report AA made about her SIL that resulted in the SIL's children being removed from her custody? AA was reportedly not on good terms with the SIL, and may even have been afraid of her. AA's husband brought up his own sister as a suspect to LE, but she was reportedly cleared. Any other jealous, resentful, or angry relatives?
-AA was found clothed, but with her pants slightly pulled down. Is this indicative of a sexually-motivated crime? Did someone do this to show dominance/power/control over AA or to humiliate her? Was it staged to throw off LE? Did AA try to remove her clothing in a moment of disorientation?
-Besides no forced entry, LE was unable to find any foreign DNA in AA's home. No blood/DNA, no hairs, no fibers, no fingerprints, no footprints. Basically no hard evidence that anyone was in the home with AA when she died. It is mainly for this reason that AA's death was deemed an accident, but was something missed? Or was the perpetrator exceptionally lucky or adept at covering his tracks?
-LE did not find any footprints in the blood from AA's dog (who was inside the home when LA returned from his trip). Why didn't the dog go down the stairs (which were openly accessible) even once in the 44 hours between the timing of AA's dropped phone call and the discovery of her body?