BALTIMORE (AP) -- After spending 16 years in prison for the killing of his former high school girlfriend, a man at the center of popular podcast "Serial" has a chance at freedom.
Retired Baltimore Circuit Judge Martin Welch ruled Thursday that Adnan Syed, 35, deserved a new trial because his lawyer didn't challenge testimony in the case that became the focus of the podcast, which captivated millions of listeners around the world.
Syed was convicted in 2000 of murdering Hae Min Lee a year earlier and burying her in a shallow grave in a park in northwest Baltimore. He was sentenced to life in prison.
During a post-conviction hearing in early February, Syed's attorneys argued he deserved a retrial on the grounds that his original attorney, Cristina Gutierrez, did not contact Asia McClain Chapman, an alibi witness who said she saw Syed at the Woodlawn library about the same time prosecutors say Lee was murdered.
Additionally, Syed's current attorneys argued cell tower data linking Syed's phone to the burial site on the day of Lee's murder was misleading because it was presented to jurors without a cover sheet warning that incoming call data was unreliable.
In Welch's order, he disagreed that Gutierrez erred when she failed to contact Chapman, or that prosecutors breached their duty by withholding exculpatory evidence. But Welch did agree that Syed's attorney provided "ineffective assistance for the failure to cross-examine the state's cell tower expert about the reliability of cell tower location evidence" that placed him near the burial site.
The state had argued that because Syed didn't raise the issue of his trial attorney's failure to cross-examine the state's cell tower expert in a prior proceeding, he waived his right to make it an issue now. But the judge ruled that Syed didn't "intelligently or knowingly" waive his right to raise the issue, noting that he never completed his high school degree.
"Requiring a layman who lacks a complete high school education to understand the intricacies of cellular network design and the legal ramifications of trial counsel's failures to challenge the evidence would be inconsistent with the spirit of the Sixth Amendment," the judge wrote.
The judge said the attorney's performance "fell below the standard of reasonable professional judgment" when she failed to confront the state's expert about the reliability of the cell tower evidence.
Syed's attorney, Justin Brown, trumpeted the news in a tweet Thursday afternoon: "WE WON A NEW TRIAL FOR ADNAN SYED!!! #FreeAdnan."
At a news conference, Brown said he "fully expects" the state to appeal the judge's decision. But he said he and the rest of the defense team have "dug our heels in" and remain determined to fight on Adnan Syed's behalf, including requesting that Syed be released from jail while he awaits retrial.
"This is obviously an incredible victory," he said. "We know the state is not going to give up, and we're ready."
Brown said earning a new trial in Baltimore is "very difficult."
"This was us getting over the hill," he said. "There's a lot more work to be done, but we're feeling pretty confident."
Calls, emails and text messages to officials in the state attorney general's office were not immediately returned.
During the extensive hearing, defense attorneys and prosecutors called witnesses and vigorously cross-examined others.
Chapman spent nearly two days on the stand, testifying she and Syed spent about 15 minutes chatting in the library on Jan. 13, 1999, but that despite repeated efforts to reach Syed's defense team at the time with an offer to be an alibi, she was never contacted. Chapman wrote a pair of letters and sent them to Syed in jail days after the man's arrest, detailing their meeting.
This was Syed's second attempt at a new trial. Welch denied the earlier post-conviction relief bid in 2014 after determining that Gutierrez's decision not to pursue Chapman was the result of reasonable trial strategy, not neglect.
In his Thursday order, Welch reiterated his stance that failing to contact Chapman didn't constitute a failure of duty because her testimony, which pertained to the time of the Lee's murder, had little to do with Syed's defense strategy -- instead pertaining primarily to the timeline of Lee's murder.
Brown also called witnesses to testify that cell tower data -- an important piece of the state's case against Syed -- should have never been presented to jurors without an instruction sheet warning that any incoming call data is inconclusive.
Brown showed the judge an affidavit from the radio frequency technician who testified at Syed's trial for the prosecution that said his testimony would have been different had he seen the instruction sheet prior to taking the stand. But prosecutors countered that the instructions didn't pertain to any relevant data placing Syed's phone in Leakin Park during the time Lee was buried.
This was the issue that persuaded Welch to grant Syed a new trial.
The judge wrote, "there is a substantial possibility that the result of the proceeding would have been different but for trial counsel's failure to cross-examine the State cell tower witness about the disclaimer."
The podcast, which debuted in the winter of 2014, attracted millions of listeners and shattered records for the number of times a podcast has been streamed and downloaded. The loyal army of listeners often acted as armchair detectives, uncovering new evidence and raising new questions about the case.
When asked if Syed would have likely won a new trial without the fanfare surrounding "Serial," Brown said, "I don't think so."
But in his ruling Welch directly addressed the issue.
"Regardless of the public interest surrounding this case, the court used its best efforts to address the merits of the petitioner's petition for post-conviction relief like it would in any other case that comes before the court; unfettered by sympathy, prejudice or public opinion," he wrote.
In a footnote, he added that he didn't listen to the podcast because it is not part of the evidentiary record.
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Associated Press writers Alana Durkin Richer, Brian Witte and Kasey Jones contributed to this story.