DNA

(Note: Public knowledge of the DNA testing is incomplete. Not all DNA testing documents have been released.)



Trace amounts of DNA were recovered from various items at the scene. The DNA overwhelmingly belonged to JonBenet Ramsey herself, however some mixed profiles contained unidentified components. Some argue that one or more of these identified profiles belongs to an intruder or intruders who were in the home on the night of JonBenet's death. This theory has been contested by Boulder Police and independent scientists consulted by the Boulder Daily Camera, however it has been supported by the Ramseys' lawyers and some investigators from the District Attorney's office.

Background
Lacy established herself as a strong supporter of the theory that an intruder killed JonBenét, dating back to her time as a chief deputy in the district attorney's office immediately following the murder.

As one example, then-DA's investigator Andy Horita wrote to the lab on March 12, 2008, that his bosses were "very excited" and "pleased" about the results that were being reported, and that "we're happy with what has been done and don't see the need for additional testing" unless strongly recommended by the lab.

An email one month earlier from Horita had alluded to the lab's assignment as an exercise "to validate the existing CODIS profile by eliminating point-of-manufacture controversies."

This, independent experts have said, runs contrary to the spirit of "double-blind" standards to which such testing should adhere.

Results Summary
Text

Limitations of DNA Analysis
Impossible to determine biological origin of touch DNA.

Impossible to determine when a piece of DNA was deposited.

Lacy and Ramseys Lin Wood: "DNA found on JonBenét’s underwear was from saliva, while the DNA found on her pajama bottoms was touch DNA". This is a simplification. Also, it cannot be proven that the DNA from the long johns was not also from saliva.

Kolar

“Cloth to cloth” transfer could be responsible for [the transfer of genetic material from her underwear to the leggings.] (p. 427).

1997
January 15, 1997 - CBI - (DNA Typing—DQα (DQA1)/ Polymarker)

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 * Bloodstains from shirt (Marked 5A) and white blanket (16A) consistent with JonBenet.


 * Bloodstains from panties (Marked 7) mixed profile, major component JonBenet. Unidentified minor component (results at only 1 locus).


 * Right Fingernails (14L) mixed profile, major component JonBenet. Unidentified minor component (results at only 2 loci).


 * Left fingernails (14M) mixed profile, major component JonBenet. Unidentified minor component (4 loci)


 * Bloodstain from shirt (5B) matched JonBenet.


 * Swab with saliva (14I) matched JonBenet.


 * Samples from tape (15A and 15B) matched JonBenet.


 * Bloodstains from nightgown (17A and 17C) matched JonBenet.


 * Semen stains from black blanket (23A, 23B) - DNA profiles could not be developed.

1999 Testing
January 5, 1999 - Photographs were taken of the underwear and the cutting taken from the crotch area of the underwear.

May 17, 1999 - CBI


 * Cuttings from panties (Marked 7-3 to 7-6) - 7-4 matched JonBenet Ramsey. No other interpretable profiles.


 * Cuttings from long johns (Marked 6-B1, 6-B2 and 6C) - No interpretable profiles.

2002
Some time prior to 2002 - FBI extracts mitochondrial DNA profile from axillary hair. Consistent with Patsy Ramsey or a member of her maternal line.

December 10, 2002 - Andy Horita first contacts CBI about what would be needed to submit a profile to CODIS. He is informed that Boulder Police submitted a profile (via the Denver Crime Lab) "quite a while ago" to the CBI for comparison within Colorado (though not with the entire national database).

2003
Laberge Denver Crime Lab deduces Unidentified Male 1 (report has never been made public)

2007
December 3, 2007 - Evidence received by Bode Laboratories.

2008
March 24, 2008 - Bode Laboratories

Touch DNA testing. Quantities much smaller.


 * Long Johns (top right exterior) (2S07-101-05A) - mixed profile including JonBenet and at least one male contributor. Unidentified male 1 was consistent but remaining component should not be considered single-source profile. Probability of randomly selecting an unrelated individual from the US population who would also be consistent: 1 in 6200.


 * (2S07-101-05B) - mixture including JonBenet and at least one male contributor. Unidentified male 1 "cannot be included or excluded".


 * (2S07-101-05C) - mixture including JonBenet and at least one other contributor. Minor contributor is "low level, contains allelic dropout and therefore is not suitable for comparison".


 * (2S07-101-05D) - mixture including JonBenet and at least two other contributors including one male. "Due to the complexity of this mixture it was deemed unsuitable for any further comparison purposes".


 * The cutting from the panties (2S07-101-06A, -06B, and -06C) - partial profile consistent with JonBenet.


 * Nightgown (bottom front) (2S07-101-07A) - mixture including JonBenet and at least one male contributor. Burke Ramsey and Patsy Ramsey cannot be excluded. Probability of randomly selecting an unrelated individual from the US population who would also be consistent: 1 in 50,000.


 * Nightgown (left shoulder, front and back) (2S07-101-07B) - mixture including JonBenet and at least one other contributor. Burke Ramsey and Patsy Ramsey cannot be included or excluded.


 * (2S07-101-07C) - mixture including JonBenet and at least one male contributor. Burke Ramsey and Patsy Ramsey cannot be included or excluded.


 * (2S07-101-07D) - mixture including JonBenet and at least one male contributor. Burke Ramsey cannot be included or excluded.
 * Other evidence received by Bode but "not processed at this time": ligature from neck, broken paintbrush handle, ligature from wrist, Wednesday panties,

June 26, 2008 - CBI - http://jonbenetramsey.pbworks.com/w/file/fetch/130877820/20080626-CBIrpt.pdf


 * Fingernails (14L and 14M) - could not be analyzed due to insufficient sample remaining.

(Miscellaneous items from suspects were also tested)

2009
January 13, 2009 - CBI - http://jonbenetramsey.pbworks.com/w/file/fetch/130877823/20090113-CBIrpt.pdf


 * Neck ligature (Item 8) mixed profile, major component JonBenet. Unidentified minor component ("unidentified male 1" was excluded).


 * Wrist ligature (Item 166) mixed profile, JonBenet was consistent. Unidentified minor component ("unidentified male 1" was excluded).

(Miscellaneous items from suspects were also tested)

2018
June 29, 2018 - Boulder Daily Camera reports "a new wave of DNA testing" has been completed, "although investigators are not talking about what was learned".

"We did meet with CBI and the district attorney's office, and we had a general discussion about evidence in the Ramsey case, including new technology and DNA testing," Testa said. "And we are going to take a look at the new technology, and see how they may help us further this investigation."

The testing would be conducted with new, more sensitive "kits" required of crime labs by the FBI - In 2017, the CODIS lab began requiring more sophisticated DNA tests that identify at least 20 individual points of comparison — as opposed to the standard of 13 required since 1997. All accredited DNA labs, including the one operated by the CBI, are required to use the new testing kits.

The underwear DNA
Timeline of DNA Testing of the underwear

1997 — DNA collected from a blood spot on JonBenet Ramsey’s underwear described as contaminated.

1999 — FBI releases new technology called Short Tandem Repeat to profile DNA. It uses 13 markers to raise the probability that a randomly selected individual would match it is one in 1 quintillion.

2001 — The new testing is allowed after a legal battle in Colorado’s courts, and JonBenet’s underwear is analyzed again resulting in between one and two markers out of 13 being defined.

2003 — Second blood spot on JonBenet’s underwear tested resulting in between nine and 10 markers on the spot to be defined. That genetic fingerprint meets the threshold to be placed into a national database, Combined DNA Indexing System or CODIS, which holds DNA profiles of those convicted in most states of certain crimes. No match has been made.

2008 - Bode Laboratories testing

Can Genealogical DNA Be Used like with the Golden State Killer?
Unlikely but who knows.