Criminal defense attorney Keith Johnson expressed skepticism about Scott Peterson's chances of successfully appealing his murder conviction.

Despite Scott Peterson's efforts to challenge his murder conviction, legal experts believe his strongest argument may not be enough to secure a favorable outcome.

In a recent court filing, Peterson's lawyers cited new evidence that they argue could exonerate him from the 2002 murder of his wife, Laci, and their unborn son. However, the road to overturning the conviction is expected to be challenging.

The Los Angeles Innocence Project, representing Peterson, submitted a petition alleging violations of due process and fair trial rights during the initial proceedings. The petition includes undisclosed evidence that the defense claims could have impacted the trial's outcome.

Newly presented eyewitness accounts suggest that Laci Peterson was spotted in the neighborhood after Scott had left for the day, raising doubts about the timeline presented during the trial.

SCOTT PETERSON'S LEGAL BATTLE: A DEEP DIVE INTO THE MURDER CONVICTION APPEAL
Details emerge about Scott Peterson and Amber Frey's interactions before Laci's tragic death, shedding new light on the case. (Superior Court of California, San Mateo County)
Furthermore, the defense team highlighted investigative shortcomings, including the failure to interview eyewitnesses and consider potential alternative scenarios. They argue that crucial details, such as Laci confronting burglars after Scott had left for a fishing trip, were overlooked.
Additionally, the filing disputes the reliability of scent dog evidence, suggesting that Laci was still alive after the prosecution claimed her disappearance.
Scott Peterson, accompanied by attorney Pat Harris, attends a hearing in Redwood City, Calif., Feb. 25, 2022. (AP Photo/Jeff Chiu, Pool)
Keith Johnson emphasized the challenging nature of habeas corpus petitions, likening them to a "Hail Mary" attempt in legal proceedings. While acknowledging past successes, he cautioned that such petitions are rarely granted without strong evidence.
SCOTT PETERSON'S LEGAL STRATEGY: NAVIGATING THE COMPLEXITIES OF CONVICTION APPEALS
New developments in Scott Peterson's case prompt a deeper analysis of the legal strategies and potential outcomes. (California Department of Corrections and Rehabilitation via AP)
The defense's argument revolves around alleged mismanagement of the investigation, a claim that may not suffice to warrant a successful appeal.
Despite the challenges, Peterson's legal team remains steadfast in their pursuit of justice, highlighting discrepancies in the prosecution's narrative and potential constitutional violations.
Scott Peterson and Laci Peterson in a scene from "American Murder: Laci Peterson." (Courtesy of Netflix)
The petition asserts that critical flaws in the prosecution's case cast doubt on the conviction's validity, pointing to a series of errors that collectively undermine confidence in the verdict.
The Los Angeles Innocence Project declined to comment on ongoing litigation, underscoring the sensitivity of the legal proceedings.
Adam Sabes contributes to Fox News Digital's coverage, welcoming story tips at Adam.Sabes@fox.com and engaging on Twitter @asabes10.