Ahern initially told investigators she believed her son’s death was a result of a low-impact accident the day prior, when a motorcycle rear-ended their vehicle.
Ahern later passed a polygraph examination regarding whether she caused any injuries to her son, according to prosecutors, though they noted the test results are not admissible as evidence in court.
For the first time since the incident, Webb admitted to injuring the child with the plea, according to DuBoise, who said Webb declined a post-conviction interview with the investigator.
“I think that he [Christian] got some justice,” Ahern said of the plea and sentence. “It’s not near what I wanted to see. John had to admit guilt and that he did something wrong.”
“This was a very challenging case,” said DuBoise, who prosecuted the case along with Assistant District Attorney Nikki Morton. “While we believe that Webb was responsible for causing the child’s death and other injuries, to have proven this case we would have had to prove that Webb intended to kill the child. Because no one witnessed Webb injure the child, the only way to prove his intent would be circumstantially. To prove his state of mind beyond a reasonable doubt was going to be difficult.”
“In preparing for trial, we examined cell phone records, text messages and posts on social networking sites, and what we found was that since her husband’s arrest, the mother made several statements claiming that John Webb did not kill their child,” DuBoise said. “While we understand that the loss of her son and the incarceration of her husband placed enormous stresses upon her, we believe that certain conduct and statements by her would serve to confuse the jury at trial. We’ve discussed these issues with the mother and she is fully supportive of a plea bargain in this case.”