THE US SUPREME Court has rejected a Maryland man’s bid for a new trial based on information uncovered by the hit podcast Serial.

The justices left a 4-3 ruling in place in Maryland’s highest court that denied a new trial to Adnan Syed, who was convicted of strangling a high school classmate he had once dated.

Syed is serving a life sentence after he was convicted in 2000 of killing 17-year-old Hae Min Lee and burying her body in a Baltimore park.

Prosecutors said during his trial that Syed killed Min Lee after she broke off their relationship.

Syed’s lawyers had argued that his trial lawyer’s failure to investigate an alibi witness violated his right to competent legal representation.

“We are deeply disappointed by the Supreme Court but by no means is this the end of Adnan Syed,” defence lawyer C Justin Brown told Associated Press.

“There are other legal options and we are exploring each and every one of them.”

Millions of people learned about Syed when the hit podcast Serial dedicated its entire first season to the case in 2014.

The show shattered podcast-streaming and downloading records, shining a spotlight that led to renewed court proceedings.

Two Maryland courts found that Syed deserved a new trial.

His lawyer during his first trial, Cristina Gutierrez, failed to contact a woman who said she saw Syed at a library at the time prosecutors say he strangled his ex-girlfriend in 1999.

Gutierrez has since died. In 2018, the Maryland Court of Appeals denied Syed a new trial, even though it agreed his trial lawyer’s work was lacking.

The state high court said there was little chance the outcome would have been different had Ms Gutierrez done what she should have.

Rabia Chaudry, a lawyer and friend of Syed’s family who first brought his case to the attention of This American Life, which developed the podcast, said that the Supreme Court’s decision “was fully expected”.

She said his defence team has been preparing to file either a habeas petition in federal court or go back to the state court.

“We were just waiting. It was just a technicality. Now it’s done, so we can move forward,” she said of the high court’s move,” said Chaudry. 

“He is doing fine. He is hanging in there. He knows that none of us are basically giving up. He was a great legal team. He was a lot of public support and walking away is not an option.”