Convicting the Innocent
DNA Exonerations Database

Gregory Wallis

First NameGregory
Last NameWallis
Year of Conviction1989
Year of Exoneration2007
State of ConvictionTexas
Trial, Bench Trial, or Guilty PleaTrial
Type of CrimeRape
Death SentenceNo
Gender of ExonereeMale
Race of exonereeBlack
Type of Innocence Defense
  • Alibi
Description / Quotes from Testimony Concerning Defense

● Defendant’s wife testified that he was home with her the nights that the crimes occurred.

Did the defendant testify at trial?No
Types of evidence at trial
  • Eyewitness
  • Forensic Evidence
Type of Forensic Evidence
  • Hair
Types of Flawed Forensics
  • Valid (Excluded)
Brief Quote / Description of Testimony

The questioned hair was “different in characteristics of Greg Wallis and therefore did not come from Greg Wallis.”

Identity of eyewitness
  • Intraracial Identificaiton
  • Victim
Lineup Procedures
  • Photo array
Suggestive Procedures


Unreliable Identification?

No ● Discrepancy in description – location of tattoo

Quotes from testimony #2

Victim described that “He had tattoos all over him” and she tried to memorize them. His left arm had one with “a woman’s face with long, flowing hair, and big, pretty eyes.” She helped prepare a composite of the tattoo. “Q. And as you described and as you remembered that tattoo, the description you gave to the police officers of it being on the left shoulder, you were mistaken? A. Yes.” Officer described defendant’s tattoo as “more on the back” than what she described, and he initially “chose not to show the lineup” since he was sure this was not the attacker based on her description, “[i]t appears to be a different tattoo,” and he did not want to “contaminate the witness.” Victim did not notice large tattoo that said “Wallis” Victim agreed that defendant’s appearance also looked “somewhat different” from that she had described; his hair was darker, he had more of a beard.

Highest level reachedNR

Read more about this exoneration

Previous post
←  Keith Turner