This subject is complex and confusing. My imperfect understanding of the DNA evidence in this case is posted below. I hope I don't muddy the waters or make too many errors. Eek. I REALLY hesitated before posting my thoughts, but maybe y'all can help reduce my confusion or that of others. Nothing to lose...
There's not just the DNA of one other person though is there?
Possibly. (& probably, IMO.)
The 1997 DNA analyses of JonBenet's panties and fingernail clippings yielded JonBenet's DNA profile, an incomplete female DNA profile (consistent with JonBenet's), and 3 incomplete, yet consistent, male DNA profiles.
In 2003, the 10 marker DNA profile was isolated (bloodstain/panties) & submitted to CODIS. This was matched to the profile obtained via TDNA collection in 2008.
Unfortunately, the 2003 & 2008 results can't be compared to the 1997 results b/c of differences in loci targeted.
So far...
The male profiles could belong to 1 unidentified male
-or-
2 unidentified males, with alleles in common
-or-
3 unidentified males, with alleles in common.
Surely, you're not suggesting 5 people were in the basement that night? And yet... That's seems to be exactly what you're suggesting.
No, not at all.
The info posted above has been in the public domain for years, and it has been corroborated by sources close to the investigation. BUT, the newest information, disclosed & evaluated in FF, hasn't been corroborated. ...YET.
I don't doubt Kolar has revealed what he believes is a strong possibility, but without more information I don't think it's safe to take the SFF theory & run with it.
JMHO.