While I am leaning towards suicide I certainly don't think any evidence has been revealed to support it, yet. I appreciate Anzac and others perspective and contribution but most of the arguments that it was suicide are lack of evidence of homicide. The reasoning is flawed. When others point out a similar lack of evidence of homicide, it is dismissed because suicide is irrational.
No motivation for homicide.
1. We don't know that.
2. Some homicides have no motivation.
When someone replies that there is no motivation for suicide, it is dismissed because there is no reason for a motivation for suicide yet is equally true for homicide. A lack of homicide motivation is not evidence of suicide.
The method is rarely used in homicide.
This argument also goes both ways. This method is rarely used for suicide and barely ever used without drugs or alcohol. When it is mentioned that it would be nearly impossible to use this method for suicide, the response is suicidal people do very irrational things. So do homicidal people. The method tells us nothing.
The location is a poor location for homicide.
If it was homicide, it didn't occur in the culvert. Her body was just dumped there and it seems a reasonable place if the person need a quick place to dump a body or had waited until night. It seems like a very poor place for a suicide, as many have mentioned. It would be just as likely that someone would see a murderer dumping her body as someone seeing someone walking into the culvert. The location doesn't tell us anything.
The lack of evidence of violence means suicide.
While most homicides do have evidence of violence, not all of them do. If we turn this argument around, a high percent of people who commit suicide have a history of mental illness and there is no evidence of mental illness with Cheryl. Also, a high percent of people who commit suicide have a history of drug or alcohol abuse and there is no evidence of that with Cheryl. Using the reasoning that a lack of violence means suicide, a lack of mental illness and drug or alcohol use means homicide. Both arguments are flawed and diminish the credibility of the person making it. A lack of evidence of one thing is not evidence of something else.
Self-inflicted cuts.
We don't know what they are and we don't know if they were intentionally self-inflicted.
This goes on and on. There a common factors in suicide that are lacking just as there are common factors in homicide that are lacking.
All this. Thank you. The statement, "A lack of evidence of one thing is not evidence of something else."
If the razor blade was in Cheryl's coat pocket, she could have accidentally cut a finger reaching in her pocket as she checked for her badge. And the razor blade could have an innocent explanation for being there---she used it at home and absent-mindedly put it in her pocket. Or intended to use it in the car or at work to remove something from glass and took it along.
But that is the case with several "clues" in this case---could be this, could be that.
As I've said, if she got in a vehicle with someone she knew, there would be no violent homocidal scene at her parking spot.
That person could have asked to borrow Cheryl's phone after she got in the other vehicle, and that person turned it off, unbeknownst to Cheryl.
It just seems to me, if you view all this through the lens of Cheryl getting in a vehicle with someone she knew (or thought she knew) who had murderous intentions toward Cheryl, then a lot of what follows makes sense.
Cheryl's car was parked in a place she often parked. Cheryl's phone, wallet, and car keys went with her in another vehicle she got into voluntarily. The perp knew Cheryl's routine, knew where to find her, and had some ruse for Cheryl to get in his\her vehicle. The perp just got lucky that Cheryl had forgotten her badge, and offered to take her home for the badge and then take her (or them both) to work. (I am not accusing the carpool person here, though I don't recall other folks outside the family being cleared. There are probably quite a few FH employees commuting to work from the same area as Cheryl.)
Maybe someone the family would recognize is also on the security footage from traffic cams or residences.
As far as I know, no official announcement has been made as to when they think Cheryl was put in the culvert, though stryker57 thought she had been there since that Monday she went missing.
So, who else in Cheryl's sphere of family\friends\acquaintances was late to work that day? Or was unusually unavailable that day, if Cheryl was put in the culvert that night?
So many questions and unresolved mysteries.
(And if Cheryl left her car to go commit suicide, why didn't she just leave her phone and wallet in the car?)