2016, Pfizer and other drug manufacturers banned the use of their products for lethal injections. Texas and other states were reported to be finding it difficult to obtain supplies of drugs for executions. Execution of allegedly innocent persons Cameron Todd Willingham One notable case involves Cameron Todd Willingham, who was executed by lethal injection on February 17, 2004, for murdering his three daughters in 1991 by arson, but where a 2009 article in The New Yorker, and subsequent findings, have cast doubt on the evidence used in his conviction. In 2009, a report conducted by Dr. Craig Beyler, hired by the Texas Forensic Science Commission to review the case, found that “a finding of arson could not be sustained.” Beyler claimed that key testimony from a fire marshal at Willingham's trial was “hardly consistent with a scientific mind-set, and [was] more characteristic of mystics or psychics.” Governor Rick Perry expressed skepticism of Beyler's findings. He stated that court records showed evidence of Willingham's guilt in charges that he intentionally killed his daughters in the fire. Perry is quoted in the report remarking of Willingham, “I’m familiar with the latter-day supposed experts on the arson side of it,” and further asserted that court records provided “clear and compelling, overwhelming evidence that he was, in fact, the murderer of his children.” The Corsicana Fire Department also released a 19-page rebuttal of Beyler's report, which stated that the report overlooked several key points that would show Willingham to be guilty. On July 23, 2010, the Texas Forensic Science Commission released a report which contended that the conviction was based on “flawed science,” but that there was no indication that the arson authorities were negligent, or had committed willful misconduct. Carlos DeLuna Carlos DeLuna was convicted of murder and executed in 1989 for the killing of a 24-year-old gas station attendant on the evening of February 4, 1983. Since DeLuna's execution by lethal injection, doubts have been raised about the conviction and the question of his guilt. An investigation published by the Columbia Human Rights Law Review in May 2012 has strengthened these claims of innocence, by detailing a large amount of evidence suggesting the actual murderer was Carlos Hernandez, a similar-looking man who lived in a nearby neighborhood.<ref name="CHRLR">{{cite web|last=Liebman |first=James |url=http://www3.law.columbia.edu/hrlr/ltc/ |title=Los Tocayos Carlos: An Anatomy of a Wrongful Execution |publisher=Columbia Human Rights Law Review |date=May 2012 |display-authors=etal |url-status=dead |archive-url=https://web.archive.org/web/20120516142934/http://www3.law.columbia.edu/hrlr/ltc/ |archive-date=2012-05-16 }}</ref>