DNA tech advancements lead to exoneration of wrongfully convicted Michigan man nearly 32 years later

Gilbert Lee Poole Jr. has been in prison after he was wrongfully convicted of a murder in 1989, but he will soon be free after his sentence was vacated thanks to advancements in DNA technology.

Poole was accused of stabbing Robert Mejia to death in Pontiac on June 7, 1988. Mejia was last seen leaving a bar, and witnesses had provided a description of the person he was with to police. Composite sketches of the man were published in a newspaper, but there were no leads until the fall.

Related: Michigan had 2nd highest number of wrongful conviction exonerations in 2020

In November 1988, Poole's then-girlfriend said he committed the crime. An expert testified that Poole's bite matched a bite mark found on Mejia, and he was sentenced to life in prison on June 22, 1989.

After his conviction, bite mark analysis has been scientifically and legally discredited because it is considered unreliable. Also, DNA testing has gotten more advanced since Poole was accused of murder.

According to Michigan Attorney General Dana Nessel, post-conviction DNA testing was conducted on crime scene evidence, including bloodstains on and around Mejia. The DNA did not match Poole’s DNA nor Mejia's DNA, and it is unknown who the DNA belongs to.

This finding led the AG's Conviction Integrity Unit (CIU) to conduct a full investigation into the case. With the help of the Western Michigan University Cooley Law School Innocence Project, it was determined that Poole was wrongfully convicted and did not commit the crime.

"Mr. Poole’s conviction was based on unreliable evidence, including bite mark comparison which is not based in science," said Poole’s Cooley Innocence Project attorney Marla Mitchell-Cichon.

Mitchell-Cichon was the one who asked the AG's CIU to review the case.

A grant from the Department of Justice in 2019 allowed the AG's office to partner with the Cooley Innocence Project to investigate cases where a person may be innocent and conduct DNA testing. The Cooley Innocence Project also received a grant from the DOJ to partner with the AG's office to review cases in which unreliable forensics played a role in the conviction. 

Poole was released Wednesday morning.

Last year, Michigan had the second-highest number of wrongful conviction exonerations in the United States. Twenty people were freed. 

Under Michigan’s Wrongful Imprisonment Compensation Act, people who were wrongfully incarcerated can file to receive money from the state. They are also eligible for up to a year of reentry housing and two years of other supportive services, including job placement assistance, job training, transportation assistance, work clothing or tools, and vital documents assistance, through the Michigan Department of Corrections Offender Success Program.