The partial DNA profile the FBI has can do one thing only: Exclude suspects.
It cannot definitively point to DBC and it cannot tell us anything about DBC's heritage or any other such traits.
Yes, I found your earlier news article/interview on the subject. You are not even conversant in these matters - you are simply parroting what others have said or told you!
How many loci has the FBI identified and what are they? Can you supply any written labs reports?
What you are saying depends completely on the nature of the Partial(s) the FBI has. See this from the FBI's own page on Partials. 
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Login28. What is a partial match at NDIS?A: Occasionally a partial match between a forensic profile and an offender profile is observed during a routine NDIS database search. The FBI defines a partial match as a moderate stringency candidate match between two single source profiles having at each locus all of the alleles of one sample represented in the other sample (see illustration below). A “partial match†is not an exact match of the two profiles. When evaluating whether a candidate match is viable and should be processed through to confirmation, a forensic scientist may discover that the candidate offender profile is, in fact, excluded as the possible source of the profile obtained from crime scene evidence. Because of a similarity in alleles between the forensic unknown and the candidate offender profile, the scientist may conclude that a close biological relative of the offender may be the source of the forensic unknown. 
The following illustrates a hypothetical partial match as seen in the Scientific Working Group on DNA Analysis Methods (SWGDAM) Recommendations to the FBI Director on the “Interim Plan for the Release of Information in the Event of a ‘Partial Match’ at NDIS†at You are not allowed to view links.
 
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Locus   Forensic Unknown   Candidate Offender   Match Stringency
D8S1179   13   13, 14   Moderate
D21S11   28, 31.2   28, 31.2   High
D7S820   12   10, 12   Moderate
D7S820   10, 12   10   Moderate
D3S1358   15, 17   15, 17   High
TH01   8   7, 8   Moderate
D13S317   9, 12   9   Moderate
D16S539   11, 12   12   Moderate
VWA   17   15, 17   Moderate
TPOX   8, 11   8   Moderate
D18S51   24   16, 24   Moderate
D5S818   9, 12   12   Moderate
FGA   24, 25   24, 25   High