RSBM
IMO the above info from the article about him having used the sedative (aka BAM) on his deer farm in Indiana aprox a month before SM’s murder is either a misprint or misreported since BM himself told investigators the last time he used the sedative/BAM was in late April from their home in Colorado to sedate deer and that they’d likely find tranq darts all over his Puma Path yard because of that practice.
Below is part of exchange between FBI’s J. Grusing and BM during their interview on March 10, 2021, starts near bottom of page 85 of the AA.
Snipped and
BBM:
“SA Grusing said the odd thing about the sheets and the house was that a tranquilizer dart had been fired in or around the house."
Barry replied, "And I, I have shot, and again I have told you I don't want to get in trouble with the DNR, SA Grusing inserted he was not. Barry continued,
"I'm tellin' you, I'm telllin' you right now I've shot
two deer with my tranq gun, 'cause I used to raise deer, and I collect horns, and I'll tell you exactly what I did”. “He continued, "
They're in the yard. They're in the yard. I shoot 'em, they go to sleep. I cut their horns off, and I wake 'em up, and they go off with no horns on their head, and I cut their horns." "And, and it's totally illegal.”
“And, so I'm not gonna share that with the DNR, the way they are, and (exhale), they come arrest me.”
“And nobody even asked me about that tranq dart, but you're gonna find tranq darts around my property because I've done that."
SA Grusing asked Barry when he last did that and he shook his head and replied, "I don't recall, but, it would be when deer had antlers, and that's usually until late April."
Barry said, "I'm just tellin' you right now, I'm a redneck.
And the first thing I thought of when I
came here and saw deer in my yard with big horns, I'm like, 'I'm getting' them horns.' Not gonna kill
it. Not gonna poach it. But I guarantee if DNR knew I did that, they'd slap my wrist pretty hard."
*So yes he did use BAM on his deer farm when he lived in Indiana BUT according to his own words, the last time he used it was in Colorado (illegally) during the month prior to SM’s death. He apparently brought the BAM with him when they moved from Indiana to Colorado and when investigators queried him about why they found just empty vials but no BAM chemicals in his garage and asked if it could be because he disposed of the chemicals, BM replied, yeah could’ve.

My guess is any BAM he had leftover after shooting Suzanne up with it that fateful day was tossed along with other incriminating items/evidence during his trash dump odyssey in Broomfield.
Tick Tock…
IMHOO
#JUSTICEFORSUZANNE