"We will not give up," his lawyer said.
Syed, who had his murder conviction vacated and was granted a new trial by a Maryland judge in 2016, on Thursday won an appeal against that decision.
Syed's conviction in the death of Hae Min Lee has been vacated.
Asia McClain says she was with Syed in a Baltimore library at the time when prosecutors said he killed Hae Min Lee in 1999.
Podcast host Sarah Koenig was also in court to hear Syed's lawyers argue for new evidence to be considered.
Filmmakers Moira Demos and Laura Ricciardi take BuzzFeed News inside the year’s biggest true crime obsession. WARNING: SO MANY SPOILERS.
The decision paves the way for a circuit court to hear the testimony of Asia McClain, a potential alibi witness who says she was with Syed when prosecutors say he killed his ex-girlfriend.
"There is no affiliation between Undisclosed and Serial," a representative for This American Life told BuzzFeed News.
The appeal, which was granted in February, relates to arguments his trial attorney failed to properly represent him.
HBO's stranger-than-fiction true crime documentary The Jinx — about real estate heir Robert Durst — brings the chills and thrills missing since Serial wrapped up its first season.
Wilds' interview with The Intercept conflicted with testimony he gave during Syed's murder trial, which was reassessed by the Serial podcast. But after a conviction, the burden of proof shifts to the accused.
Jay Wilds, the key witness in Adnan Syed's trial, gave his first interview in years, and now Rabia Chaudry, the woman who introduced Sarah Koenig to Syed, claims it proves Wilds has been lying the whole time.
The 17-year-old Baltimore student, whose murder is now the subject of the world's most popular podcast — Serial — talks about balancing school and a job in this archived interview released by ABC2.
It needs a "bad" minority to balance the scales. Hello, Jay. (Spoilers for anyone who hasn't listened to Episode 8.)
"What's a pay phone? What's a Best Buy? What makes its buy the best?"