DAVIS, WILLIAM GEORGE v. the State of Texas

CourtCourt of Criminal Appeals of Texas
DecidedMarch 12, 2026
DocketAP-77,106
StatusPublished

This text of DAVIS, WILLIAM GEORGE v. the State of Texas (DAVIS, WILLIAM GEORGE v. the State of Texas) is published on Counsel Stack Legal Research, covering Court of Criminal Appeals of Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
DAVIS, WILLIAM GEORGE v. the State of Texas, (Tex. 2026).

Opinion

IN THE COURT OF CRIMINAL APPEALS OF TEXAS NO. AP-77,106

WILLIAM GEORGE DAVIS, Appellant

v.

THE STATE OF TEXAS

ON DIRECT APPEAL FROM CAUSE NO. 114-0696-21 IN THE 114TH JUDICIAL DISTRICT COURT SMITH COUNTY

RICHARDSON, J., delivered the opinion for a unanimous Court.

OPINION

In October 2021, a Smith County jury convicted Appellant of capital murder

for murdering Christopher Greenaway and one or more of John Lafferty, Ronald

Clark, and Joseph Kalina during different criminal transactions but pursuant to the

same scheme or course of conduct. See TEX. PENAL CODE § 19.03(a)(7)(B). Based 2

on the jury’s answers to the special issues set forth in Texas Code of Criminal

Procedure Article 37.071, Sections 2(b) and 2(e), the trial court sentenced

Appellant to death. TEX. CODE CRIM. PROC. art. 37.071, § 2(g). 1 Direct appeal to

this Court is automatic. Art. 37.071, § 2(h).

Appellant raises thirteen points of error. Finding no reversible error, we

affirm the trial court’s judgment of conviction and sentence of death.

BACKGROUND

Appellant was a cardiovascular intensive care unit (CVICU) nurse at

Christus Mother Frances Hospital in Tyler, Texas. At the guilt phase of

Appellant’s capital murder trial, the evidence showed that, from January 2017

through January 2018, Appellant intentionally or knowingly caused the deaths of

four post-operative CVICU patients (Greenaway, Lafferty, Clark, and Kalina) and

seriously injured two more (Jesus Serrano and Pamela Henderson). He did so by

deliberately injecting large amounts of air into the patients’ arteries.

Each of the victims had been progressing well following their respective

surgical procedures before they suddenly and unexpectedly suffered severe,

seemingly inexplicable overnight strokes. Medical imaging showed that the victims

1 Unless otherwise indicated, all subsequent citations in this opinion to “Articles” refer to the Texas Code of Criminal Procedure. 3

presented the same “abnormal” and “unique” pattern of brain damage.

Eventually, doctors traced this distinctive pattern back to a common cause: the

intentional injection of air into the patients’ arterial systems. The evidence showed

that each of the victims had been fitted with an “arterial line”—a small catheter

placed in the victims’ radial arteries, located in the victims’ wrists, which allowed

medical staff to monitor the victims’ vital signs during and after surgery.

Appellant was not formally assigned to any of the victims’ post-operative

care. But of all the CVICU night-shift nurses working at the hospital during the

relevant time period, Appellant was the only nurse whose shifts coincided with all

of the victims’ sudden downturns or “crash[es].” Appellant was also directly

linked to each victim’s crash. In Greenaway’s case, Appellant had temporarily

assumed care of Greenaway when his assigned CVICU night-shift nurse, Ben

Rasberry, took a meal break. In the twenty-to-thirty minutes in which Rasberry was

away, Greenaway suffered a stroke. In Lafferty’s case, Appellant had temporarily

assumed care of Lafferty when Lafferty’s assigned CVICU nurse briefly stepped

out of the room. In Clark’s case, Appellant had been assigned to the care of patients

in the rooms next to Clark’s.

In Serrano’s case, as Serrano was crashing, Appellant directed another

caregiver to remove a syringe Appellant had attached to Serrano’s arterial line, 4

because Serrano’s surgeon, who was en route to the patient’s room, “would be

looking for it.” In Henderson’s case, when Henderson’s assigned CVICU nurse

ran into her room to stabilize her as she began to crash, the nurse witnessed

Appellant “already in the room at [Henderson’s] bedside.” Finally, in Kalina’s

case, surveillance footage showed Appellant entering Kalina’s room with an empty

syringe moments before Kalina began to crash. After leaving Kalina’s room,

Appellant watched from down the hall as other medical staff rushed to Kalina’s

room to save him.

When hospital administrators grew suspicious of Appellant and asked him to

account for his role in what had happened to the victims, Appellant gave

implausible and conflicting responses. And when Appellant was finally removed

from the hospital’s work schedule, the unexplained crashes suddenly stopped.

At punishment, the State presented evidence from which the jury could

rationally deduce that Appellant caused the deaths of three additional CVICU

patients (James Blanks, James Sanders, and Perry Frank) and seriously injured

three more (Gary Parker, James Wages, and Rickie Glenn). Each of these incidents

occurred within the same period of time covered in the guilt phase—January 2017

through January 2018. The State also introduced a recording of a jail call that

Appellant made to his ex-wife, in which Appellant made a comment strongly 5

suggesting that, “a year prior to” him intentionally harming patients in the

CVICU, he intentionally caused the death of an elderly woman in the “neuro

ICU.” When Appellant’s ex-wife asked, “Was she your first,” Appellant

answered, “Yes.”

In addition, the State adduced evidence that, when Appellant was eighteen

years old, he entered into a sexual relationship with a thirteen-year-old girl. On one

occasion, Appellant contacted the girl while she was staying with her father and

asked her to “sneak out” of her father’s house and “leave with him.” When the

girl refused, Appellant “said that he would beat the living . . . shit out of [her] dad if

[she] did not leave.”

UNANIMITY

In points of error one and two, Appellant argues that the trial court erred

under state and federal law by failing to instruct the jury that, to find Appellant

guilty of capital murder, it needed to “unanimously agree about the identity of the

victim or victims of the non-predicate offenses.”

At the close of evidence, the trial court charged the jury as follows:

In this case, then, you must determine whether the State has proven beyond a reasonable doubt:

1. The defendant, in Smith County, Texas, on or about the 4th day of 6

August, 2017, intentionally or knowingly caused the death of Christopher Greenaway by introducing air into the arterial system of Christopher Greenaway; and

2. The defendant, in Smith County, Texas, committed one or more of the following acts:

a. The defendant, on or about the 16th day of June[,] 2017, intentionally or knowingly caused the death of John Lafferty by introducing air into the arterial system of John Lafferty; or

b. The defendant, on or about the 26th day of July, 2017, intentionally or knowingly caused the death of Ronald Clark by introducing air into the arterial system of Ronald Clark; or

c. The defendant, on or about the 25th day of January, 2018, intentionally or knowingly caused the death of Joseph Kalina by introducing air into the arterial system of Joseph Kalina;

and

3. The murder of Christopher Greenaway and the murder, or murders, of John Lafferty, or Ronald Clark, or Joseph Kalina were committed during different criminal transactions but pursuant to the same scheme or course of conduct.

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DAVIS, WILLIAM GEORGE v. the State of Texas, Counsel Stack Legal Research, https://law.counselstack.com/opinion/davis-william-george-v-the-state-of-texas-texcrimapp-2026.