NM - Retired Maj. Gen. William Neil McCasland, 68, who led Air Force Research Laboratory. February 27th,2026

[sds71]

A woman on Facebook who said she had reported the information to authorities claimed she may have seen someone matching McCasland’s description around the same time he went missing on Friday near the Whitewash trailhead in Piedra Lisa Canyon.

In a post shared with the Albuquerque Trail Running Crew group, the woman named Mj Davis said the man was standing off to the side near a bridge over the arroyo at the start of the trail.

The Bernalillo County Sheriff’s Office (BCSO), which is leading the search, later responded in the same thread, reminding users to report tips directly to investigators, but did not publicly dispute the sighting.

UFO-linked Air Force general's disappearance takes new twist

New details have emerged in the disappearance of a retired US Air Force general linked to secret UFO programs as the FBI joins the search effort.

www.dailymail.co.uk

Here’s his FB:

Facebook

www.facebook.com

 

[swanniee11]

Facebook Albuquerque, New Mexico hiking group page
friends are posting here, it seems he just biked 60 miles the wkend before he went missing.

 

[MissPie]

Facebook Albuquerque, New Mexico hiking group page
friends are posting here, it seems he just biked 60 miles the wkend before he went missing.

If true, he does not sound like a person with any kind of advanced dementia.

 

[moonglow123]

I used to live 5 mins from where he disappeared ... there are definitely walking routes, arroyos, and mountain paths nearby but it's not exactly a place where you can disappear into thin air, at least IMO. I am genuinely surprised they haven't been able to find him by now if he disappeared off of one of the paths. Hopefully a lot of search parties are going out to cover more ground.

I hope it wasn't a self-harm issue or him wandering off for that purpose... since we're still unclear on whether he actually has cognitive issues, despite the Silver Alert. Agree that biking 60 miles would not exactly seem indicative of wandering off in confusion a week later.

 

[SteveS]

The silver alert is specifically for missing people with cognitive issues, and his loved ones would have no incentive to say he had them, if he didn't. It may be dementia AND another factor, but it's being reported as and also looks just like what dementia looks like. The people in NM understand all this, apparently. But I hate to see this convo get derailed by posts that are far off base in thinking this is something other than dementia as a primary factor.

Having dealt with family members (for MANY years) with cognitive issues, it's clear to me that many of you have not, and have no clue what it's like. Wait and see - he will be found, hopefully (but not certainly) without having suffered harm - and the key issue will be that he put himself in harm's way (intentionally or unintentionally) or got very confused because he was in mental decline.

Some who are battling such things end up with major depression over it all, and want to do self harm to end it all. That's possible here, perhaps. If he has indeed biked to a remote area, that may even be likely.

We also don't know what kind of bike he might have been riding - if he had an electric one, those can go 50-100 miles on a single charge. He could have set off to go around the block, and couldn't find his way home.

Also, the idea that a 68-year-old retired military man with cognitive issues couldn't bike a long ways is just nuts --- it's not physical issues that he's dealing with. I had a very dear loved one, with significant Alzheimers for years, who was in GREAT physical condition, and she would go on walks in Dallas and end up MILES away from where she thought she was. One time the police found her on a "walk around the block" that ended up with her about 10 miles from home, and she was discovered walking near Central Expressway in rush hour, still briskly walking block after block trying to figure out how to get home.

 

[MissPie]

The silver alert is specifically for missing people with cognitive issues, and his loved ones would have no incentive to say he had them, if he didn't. It may be dementia AND another factor, but it's being reported as and also looks just like what dementia looks like. The people in NM understand all this, apparently. But I hate to see this convo get derailed by posts that are far off base in thinking this is something other than dementia as a primary factor.

Having dealt with family members (for MANY years) with cognitive issues, it's clear to me that many of you have not, and have no clue what it's like. Wait and see - he will be found, hopefully (but not certainly) without having suffered harm - and the key issue will be that he put himself in harm's way (intentionally or unintentionally) or got very confused because he was in mental decline.

Some who are battling such things end up with major depression over it all, and want to do self harm to end it all. That's possible here, perhaps. If he has indeed biked to a remote area, that may even be likely.

We also don't know what kind of bike he might have been riding - if he had an electric one, those can go 50-100 miles on a single charge. He could have set off to go around the block, and couldn't find his way home.

Also, the idea that a 68-year-old retired military man with cognitive issues couldn't bike a long ways is just nuts --- it's not physical issues that he's dealing with. I had a very dear loved one, with significant Alzheimers for years, who was in GREAT physical condition, and she would go on walks in Dallas and end up MILES away from where she thought she was. One time the police found her on a "walk around the block" that ended up with her about 10 miles from home, and she was discovered walking near Central Expressway in rush hour, still briskly walking block after block trying to figure out how to get home.

Both my father and stepmother died from different forms of dementia in the last two years. I walked their journey with them all the way ‘home’. Each one took a very different path of progression. So yes, I agree with you that he may have been able to bike a long way, even if cognitively impaired. And truly we don’t even know if it’s TRUE that he did bike 60 miles. In fact we know very little in the way of facts here so far. I pray that he is found safe.

 

[Han]

There’s been no information that he left by bike. Whoever reported him missing (wife?) would know if he took his bike. They also likely informed BCSO of his qualification for Silver Alert which results in more rapid measures to locate.

To be clear… we do not know the exact reason for the Silver Alert (privacy issues prevent disclosure) AND we have not been told he left by bike.

 

[moonglow123]

We don’t think he left by bike, his friends just said he took a 60 mile bike ride the weekend before he disappeared, someone linked above ^

It is true people with dementia can have good and bad days. His friends saying he seemed normal doesn’t necessarily mean anything.

I do just hope he’ll be found soon.

Concern grows as FBI joins search for former Kirtland commander

FBI now assisting BCSO in search for retired Maj. Gen. Neil McCasland. See how you can help by checking cameras and sharing tips.

www.abqjournal.com

Kirtland AFB and the FBI getting involved should be helpful, hopefully that much manpower will be able to cover a lot of ground.