State Of Washington, V. Patrick Leon Nicholas

CourtCourt of Appeals of Washington
DecidedMay 5, 2025
Docket85387-2
StatusUnpublished

This text of State Of Washington, V. Patrick Leon Nicholas (State Of Washington, V. Patrick Leon Nicholas) is published on Counsel Stack Legal Research, covering Court of Appeals of Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
State Of Washington, V. Patrick Leon Nicholas, (Wash. Ct. App. 2025).

Opinion

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

STATE OF WASHINGTON, No. 85387-2-I Respondent, DIVISION ONE v. UNPUBLISHED OPINION PATRICK LEON NICHOLAS,

Appellant.

MANN, J. — Patrick Nicholas was convicted of murder in the first degree with

sexual motivation based on his 1991 murder of 16-year-old Sarah Yarborough.

Nicholas appeals his conviction arguing the State’s DNA statistical evidence was

inadmissible under Frye,1 and that it was unconstitutional for police officers to obtain his

DNA from a discarded cigarette butt. Nicholas also argues that his exceptional

sentence is invalid. We remand for resentencing on the exceptional sentence. We

otherwise affirm.

I

On December 14, 1991, Sarah Yarborough, a 16-year-old student at Federal

Way High School (FWHS), planned to join her drill team for a competition. She arrived

at FWHS approximately 45 minutes prior to the meeting time.

1 Frye v. United States, 54 App. D.C. 46, 293 F. 1013, 1014 (1923). No. 85387-2-I/2

Around 9:20 a.m., two 12-year-old boys were walking through FWHS grounds

when they noticed a white male emerge from the hillside next to the parking lot. The

boys noticed the man was wearing a long, dark trench coat; they locked eyes with him

as the man began quickly walking away. The boys approached the area where the man

emerged from and discovered a body of girl in a drill team uniform lying motionless on

her back. The boys ran home and told their parents who then called the police.

Police officers arrived and found Yarborough lying in her drill team uniform. Her

nylon stockings were wrapped around her neck in a ligature. Yarborough’s underwear,

bra, jacket, and socks were in a pile about three feet away from her body.

An autopsy revealed that Yarborough died as a result of ligature strangulation

and blunt force injuries to her face. Semen was found on the items of clothing placed

away from Yarborough’s body. Washington crime lab DNA scientists developed a

single male DNA profile from the semen on Yarborough’s clothes.

For over 27 years, and despite over 4,000 tips, there was never a match to the

male DNA profile found at the scene. Then, on September 27, 2019, detectives

received a phone call from Dr. Colleen Fitzpatrick, a forensic genealogist. Fitzpatrick

used the unknown DNA profile from the crime scene and genealogy comparisons to find

a person of interest. She gave the detectives the names of two brothers with the last

name Nicholas. One brother was already in the combined DNA index system (CODIS)

from a prior conviction of rape in the first degree, so detectives immediately ruled him

out as a potential killer. But Patrick Leon Nicholas was not in CODIS despite two prior

convictions for rape in the first degree and one conviction for attempted rape in the first

degree.

-2- No. 85387-2-I/3

On September 29, 2019, detectives began undercover surveillance of Nicholas.

Detectives observed Nicholas smoke two cigarettes outside a laundromat and then

discard the cigarette butts on the ground. Detectives retrieved the cigarette butts and a

napkin that fell out of Nicholas’s pocket.

On October 2, 2019, it was confirmed that the unknown DNA left on

Yarborough’s clothes was a match to the DNA on Nicholas’s discarded cigarette butts

and napkin. Police arrested Nicholas on October 3, 2019.

Nicholas was charged with premediated murder in the first degree (count 1),

felony murder in the first degree predicated on attempted rape in the second degree

(count 2), and felony murder in the second degree predicated on indecent liberties

(count 3). All counts included allegations of sexual motivation.

Nicholas moved to suppress evidence gathered through the search of Nicholas’s

family tree and the collection and testing of the discarded cigarette butts. Nicholas

asserted that genetic information is a private affair and thus protected by article I,

section 7. Accordingly, Nicholas argued that the seizure and testing of his cigarette butt

was an improper warrantless search.

The trial court concluded that Nicholas lost any privacy interest and relinquished

his DNA when he voluntarily abandoned his cigarette butt outside the laundromat. The

court concluded that no subsequent search warrant was needed to test and to compare

the DNA from the abandoned items to the DNA from the crime scene.

Nicholas also requested a Frye hearing to determine the admissibility of

statistical calculations the Washington State Patrol Crime Lab (WSPCL) developed to

explain the significance of the DNA match. After hearing testimony from experts for

-3- No. 85387-2-I/4

both sides, the trial court concluded that the State’s calculations for the significance of a

scientific match was widely regarded in the relevant scientific forensic community as the

appropriate scientific calculation.

A jury found Nicholas guilty of murder in the first degree and murder in the

second degree. The jury acquitted Nicholas of the crime of murder in the first degree

premediated.2

The trial court imposed an exceptional sentence of 548 months on count two

based on the jury’s special verdict finding that the crime was sexually motivated.

Nicholas appeals.

II

Nicholas argues that the trial court erred in admitting the State’s calculation of the

significance of a DNA match in this case because it was inadmissible under Frye. We

disagree.

A

DNA is commonly referred to as our genetic blueprint that is passed down from

parents to children. Forensic DNA testing assumes that while humans share 99 percent

of the same DNA, there are specific locations on the human genome that vary

significantly among individuals, which can be tested to find potential matches.

After a profile has been identified as a possible source of DNA, the calculation

must be accompanied by a statistic that explains the strength of the match. There are

different types of calculations that can be used, including Random Match Probability

2 The trial court vacated the conviction for murder in the second degree based on double jeopardy.

-4- No. 85387-2-I/5

(RMP). The RMP is the probability that an unrelated person randomly chosen from the

population is included as a potential contributor of the mixed DNA profile.

Here, WSPCL’s forensic scientist, Jennifer Venditto, reported statistical

calculations using the RMP method. Venditto determined the DNA obtained from the

crime scene matched Nicholas and the probability an unrelated individual at random

from the U.S. who had a matching profile was 1 in 120 quadrillion.

Nicholas requested a Frye hearing arguing the State’s statistical calculation was

not generally accepted in the scientific community when the suspect is initially identified

through a database search. He did not dispute that the RMP is a generally accepted

method, but he argued that the RMP needs to be adjusted if a suspect is first identified

through a database.

At the Frye hearing, Dr. Daniel Krane testified for the defense. He is a biology

professor at Wright State University and an owner of a consulting business that assists

individuals, typically defendants, “who want to have better understanding about issues

pertaining to forensic DNA profiling.” Dr. Krane testified that the RMP statistic needs to

be adjusted to reflect that a database was initially used to identify Nicholas.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

Katz v. United States
389 U.S. 347 (Supreme Court, 1967)
State v. Myrick
688 P.2d 151 (Washington Supreme Court, 1984)
State v. Birdsong
832 P.2d 533 (Court of Appeals of Washington, 1992)
State v. Riker
869 P.2d 43 (Washington Supreme Court, 1994)
United States v. Davis
602 F. Supp. 2d 658 (D. Maryland, 2009)
United States v. Jenkins
887 A.2d 1013 (District of Columbia Court of Appeals, 2005)
Anderson v. AKZO NOBEL COATINGS, INC.
260 P.3d 857 (Washington Supreme Court, 2011)
State v. Nysta
275 P.3d 1162 (Court of Appeals of Washington, 2012)
State v. Hepton
54 P.3d 233 (Court of Appeals of Washington, 2002)
Eakins v. Huber
225 P.3d 1041 (Court of Appeals of Washington, 2010)
State v. Garvin
207 P.3d 1266 (Washington Supreme Court, 2009)
State v. Jackson
76 P.3d 217 (Washington Supreme Court, 2003)
State v. Flores
186 P.3d 1038 (Washington Supreme Court, 2008)
State v. Boland
800 P.2d 1112 (Washington Supreme Court, 1990)
State v. Dugas
36 P.3d 577 (Court of Appeals of Washington, 2001)
State v. Evans
150 P.3d 105 (Washington Supreme Court, 2007)
State Of Washington, V Justin Moses And Aimee Moses
193 Wash. App. 341 (Court of Appeals of Washington, 2016)
Matter of Sandford v. Finegan
11 N.E.2d 356 (New York Court of Appeals, 1937)
State Of Washington, V Treven A. Perry
431 P.3d 543 (Court of Appeals of Washington, 2018)
State Of Washington v. Geraldo Castro Dejesus Iii
436 P.3d 834 (Court of Appeals of Washington, 2019)

Cite This Page — Counsel Stack

Bluebook (online)
State Of Washington, V. Patrick Leon Nicholas, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-of-washington-v-patrick-leon-nicholas-washctapp-2025.