William Johnston

Lead Trial Attorney at Loncar Lyon Jenkins
Dallas, TX

About William Johnston

William W. "Bill" Johnston, Esq. is a Lead Trial Attorney at Loncar Lyon Jenkins with a distinguished career spanning public service, federal prosecution, and high-stakes litigation. He served as an Assistant United States Attorney with the U.S. Department of Justice for 14 years, leading several high-profile prosecutions.

Johnston's notable prosecutions include the Branch Davidian Cult case, the federal aspect of the Kenneth McDuff serial killer case, and three Nation's Top 15 Fugitive cases, alongside extensive medical malpractice defense and civil rights litigation. He was named one of the 20 Most Interesting and Influential Texans by Texas Monthly. His career has been featured in Prosecuting Evil with Kelly Siegler (Matt Baker case), the True Crime Reporter Podcast (Kenneth McDuff case with Senator Ted Lyon), the Fox Nation special Freed to Kill, and Texas Monthly's article 'The Case of the Persecuted Prosecutor.'

Johnston is also a Captain in the United States Army Reserve and is fluent in English and Spanish.

He earned his J.D. from Baylor University School of Law and his B.S. in Business Management from Texas A&M University. He is admitted to the State Bar of Texas, the U.S. District Court for the Western District of Texas, and the U.S. Court of Appeals for the Fifth Circuit.

Proven verdicts and settlements at Loncar Lyon Jenkins

These results are credited to Loncar Lyon Jenkins. A result appears under an attorney's own name only when a published source names them as counsel on the case.

A Kaufman County jury awarded $296 million in compensatory damages against Koch Industries after a corroded, unmaintained butane pipeline exploded and killed two teenagers on August 24, 1996.

District Court, Kaufman County, Texas · 1999Wrongful DeathRead the full story →
$84.25 millionVerdict

A Dallas jury awarded $84.25 million in 2008 after a 26-foot U-Haul truck with a failed parking brake rolled over Talmadge Waldrip, leaving him bedridden and requiring round-the-clock care.

Dallas County, Texas · 2008Premises LiabilityRead the full story →
$51 millionVerdict

A Dallas County jury awarded $51 million in August 2024 to a South Dallas mother and her two young children after a corroded boiler exhaust pipe at their apartment complex channeled carbon monoxide into their home in 2015, leaving both children with irreversible brain injuries.

Dallas County, Texas · 2024Premises LiabilityRead the full story →
$7.37 millionVerdict

A Texas county court at law jury found a design defect in the handling of a 1996 Ford Explorer that rolled over after a rear tire lost its tread in July 2003, killing Diane Wiles. The jury put one-third of the responsibility on Ford, one-third on the driver and one-third on Ms. Wiles, and the court entered a judgment of $7,370,197.16 in actual damages. The Dallas Court of Appeals reversed in 2011 for lack of evidence of a safer alternative design.

County Court at Law, Texas (appeal to Fifth Court of Appeals, Dallas) · 2009Product LiabilityRead the full story →

Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.

Practice areas

Education

Baylor University School of Law
B.S. in Business Management
Texas A&M University
Undergraduate

Bar admissions & credentials

State Bar of Texas
State Bar of U.S. District Court, Western District of Texas
State Bar of U.S. Court of Appeals for the Fifth Circuit

Awards & recognition

Texas Monthly — 20 Most Interesting and Influential Texans

Other attorneys at Loncar Lyon Jenkins

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Proven verdicts and settlements from other Dallas firms

Aldous Law
Aldous Law
$268.6 million · Jury Awards $268 Million After Medical City Gave a 13-Year-Old Girl a Fatal Propofol Overdose
Dean Omar Branham Shirley, LLP
Dean Omar Branham Shirley, LLP
$966 Million Talc Verdict Against Johnson & Johnson for a Mesothelioma Death, Punitive Award Vacated
Turley Law Firm
Turley Law Firm
$119.6 million · Dallas Jury Awards $119.6 Million Against Catholic Diocese for Decades of Clergy Abuse and Cover-Up
Lyons & Simmons, LLP
Lyons & Simmons, LLP
$360.01 million · $860 Million Verdict in Dallas Crane Collapse Death, Entered as $360 Million Judgment After Exemplary Cap
Miller Weisbrod Olesky
Miller Weisbrod Olesky
$26.5 Million Verdict for Paraplegic Worker After Contractor Ignored Its Own Fall-Protection Rules

Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.