Com. v. Butler, J.

CourtSuperior Court of Pennsylvania
DecidedFebruary 3, 2026
Docket3002 EDA 2024
StatusUnpublished
AuthorBeck

This text of Com. v. Butler, J. (Com. v. Butler, J.) is published on Counsel Stack Legal Research, covering Superior Court of Pennsylvania primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Com. v. Butler, J., (Pa. Ct. App. 2026).

Opinion

J-A27044-25

NON-PRECEDENTIAL DECISION - SEE SUPERIOR COURT O.P. 65.37

COMMONWEALTH OF PENNSYLVANIA : IN THE SUPERIOR COURT OF : PENNSYLVANIA : v. : : : JERRY LAMAR BUTLER : : Appellant : No. 3002 EDA 2024

Appeal from the Judgment of Sentence Entered September 19, 2024 In the Court of Common Pleas of Montgomery County Criminal Division at No(s): CP-46-CR-0001074-2024

BEFORE: BOWES, J., MURRAY, J., and BECK, J.

MEMORANDUM BY BECK, J.: FILED FEBRUARY 3, 2026

Jerry Lamar Butler (“Butler”) appeals from the judgment of sentence

entered by the Montgomery County Court of Common Pleas (“trial court”)

following his convictions of second-degree murder, robbery, and conspiracy. 1

Butler challenges the trial court’s ruling regarding an expert witness, the

denial of his motion to suppress a search warrant, and the constitutionality of

a sentence of mandatory life imprisonment without parole (“LWOP”) for

individuals convicted of second-degree murder. We affirm.

Facts and Procedural History

The Commonwealth jointly tried Butler, Daquan Allen (“Allen”), and

Damon Brantley (“Brantley”) for their roles in the murder of William Carter

____________________________________________

1 18 Pa.C.S. §§ 2502(b); 3701; and 903. J-A27044-25

(“the victim”). A fourth defendant, Justin Davis (“Davis”), was sixteen at the

time of the shooting and testified against his three co-conspirators. The trial

court summarized the basic facts as follows:

The conspiracy was set in motion by Katherine Emel (“Emel”). Emel had seen the victim with a wad of money earlier that day, and told Allen that the victim owed her money. Butler, Brantley, Allen, and Justin Davis drove to the victim’s location, supplied by Emel, in a stolen Toyota Rav4. They parked behind the victim’s Buick LaSabre and when the victim went to his car, they got out of their car, robbed and shot the victim once in the head. They fled the scene, abandoned the Rav4 near the crime scene, and switched to a different car, an[] Infinity, to avoid detection. Later, Brantley went back to set fire to the Rav4. Butler, Brantley, and Allen fled to a residence in Endicott, New York, where they were apprehended on January 31, 2024.

Trial Court Opinion, 1/21/2025, at 1-2.

The jury convicted Butler of all three charges and the trial court imposed

the mandatory sentence of LWOP. Butler filed a timely post-sentence motion,

and a timely notice of appeal following its denial. Both Butler and the trial

court have complied with Pa.R.A.P. 1925. He raises three claims for our

review:

1. Whether the trial court erred in denying [Butler]’s request for a … hearing on the admissibility of DNA evidence generated using STRmix probabilistic genotyping software, where the defense expert raised substantial questions about the reliability and general acceptance of STRmix as applied to low-template, multi-contributor mixtures such as those presented in this case?

2. Whether the trial court erred in denying [Butler]’s motion to suppress historical cell site location information (CSLI)?

3. Whether the mandatory sentence of life without parole imposed for second-degree (felony) murder under 18 Pa.C.S. § 1102(b) and 61 Pa.C.S. § 6137(a)(1) violates Article I, Section 13 of

-2- J-A27044-25

the Pennsylvania Constitution and the Eighth Amendment to the United States Constitution?

Butler’s Brief at 4. Frye Hearing

Butler’s first claim addresses the trial court’s denial of his request to

hold a Frye2 hearing on the admissibility of the expert testimony linking his

DNA to the victim.

We review evidentiary decisions, including whether the trial court erred

in not granting a Frye hearing, for an abuse of discretion. Commonwealth

v. Jacoby, 170 A.3d 1065, 1090 (Pa. 2017). “An abuse of discretion is not

merely an error of judgment, but if in reaching a conclusion the law is

overridden or misapplied, or the judgment exercised is manifestly

unreasonable, or the result of partiality, prejudice, bias or ill-will, as shown by

the evidence or the record, discretion is abused.” Id. (quoting

Commonwealth v. Walker, 92 A.3d 766, 772 (Pa. 2014)).

Our Rules of Evidence permit the admission of expert testimony if “the

expert’s methodology is generally accepted in the relevant field.” Pa.R.E.

702(c). This “general acceptance” rule is based on the standard set forth by

Frye.

The Frye test is a two-step process. First, the party opposing the

evidence must show that the scientific evidence is “novel.” “This Court has

2 Frye v. United States, 293 F. 1013 (D.C. Cir. 1923).

-3- J-A27044-25

explained that scientific evidence is ‘novel’ when ‘there is a legitimate dispute

regarding the reliability of the expert’s conclusions.’” Commonwealth v.

Cramer, 195 A.3d 594, 606 (Pa. Super. 2018) (quoting Commonwealth v.

Safka, 95 A.3d 304, 307 (Pa. Super. 2014)). If the moving party has

identified novel scientific evidence, then the proponent of the scientific

evidence must show that “the expert’s methodology has general acceptance

in the relevant scientific community” despite the legitimate dispute.

Commonwealth v. Foley, 38 A.3d 882, 888 (Pa. Super. 2012) (citations

omitted). For Frye to apply, the dispute as to “the reliability of an expert’s

conclusions” pertains to the methodology used to reach that conclusion, not

to the conclusion itself. Grady v. Frito-Lay, 839 A.2d 1038, 1047 (Pa. 2003).

At trial, the Commonwealth called Thomas Rataic, a forensic DNA

scientist employed by the Pennsylvania State Forensic DNA Lab. N.T.,

9/12/2024, at 300. Rataic discussed “STR or short tandem repeat analysis,”

which “allows us to isolate specific regions of the DNA molecule where short

sequences [are] known to rerepeat.” Id. at 304. These repeating regions

“vary in length from one person to another” and thus can differentiate

individuals. Id.

Rataic tested several items to determine if DNA from the defendants

was present. He explained that some of the items were discarded as unusable

“due to complexity of mixtures.” Id. at 310. According to Rataic, if the

“mixture profile is over four people ... it’s automatically uninterpretable” per

-4- J-A27044-25

lab policy. Id. at 311. He stated that prior to 2020, his lab would “only

interpret it … if there was a single major [contributor]” to the profile. Id. He

explained that in 2020, however, his lab “brought online a probabilistic

genotyping system called STRmix which allows us to use more information

that is in the profile than we could on our own.” Id. at 312. With that system,

the lab “can interpret a four-person mixture basically no matter what.” Id.

Turning to the items linking Butler to the victim, Rataic obtained “a DNA

profile consistent with a mixture of four contributors” from an item designated

as item Q9, described as the victim’s “pants front right pocket interior[.]” Id.

at 314. Rataic testified that Butler “can be included as a potential contributor

to this mixture profile.” Id.

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