NEW YORK (CBSNewYork/AP) — The missing-child case of Etan Patz is about to get its second turn before a jury, 37 years after the first-grader vanished in New York City.

State Supreme Court Justice Maxwell Wiley said opening statements in Pedro Hernandez’s retrial are expected as soon as Wednesday. A jury deadlocked last year.

Six-year-old Etan disappeared while heading to his school bus stop in May 1979. He was one of the first missing children ever featured on a milk carton.

Prosecutors will have to reassemble a murder case that was already complicated by faded memories, the deaths of witnesses and the fact that no trace of Etan has ever been found. The defense goes in knowing the last jury voted 11-1 to convict.

And Etan’s parents face revisiting their 6-year-old’s disappearance and suspect Pedro Hernandez’s account of choking him, given in recorded confessions that defense lawyers say were false.

Still, Etan’s father has said the first trial succeeded in providing long-sought answers for the Patzes, if not in resolving the case. Now, finally, “we hope it will be over soon,” Stanley Patz said by email last month, declining to elaborate ahead of the retrial.

Etan disappeared May 25, 1979, the first day he was allowed to walk the two blocks to his bus stop alone. Hernandez was then a teenage stock clerk at the time at a nearby corner store.

Hernandez emerged as a suspect in 2012 based on a tip and a videotaped confession that prosecutors say was foreshadowed by remarks he made to friends and relatives in the 1980s.

In Hernandez’s videotaped, hourslong confessions, he said he offered Etan a soda to entice him into the basement of the SoHo bodega where he worked. He told authorities he then choked Etan, put the body in a bag and a banana box and dumped it about two blocks away.

“I wanted to let go, but I just couldn’t let go. I felt like something just took over me,” Hernandez said on video, describing how he choked the boy after luring him to the convenience store basement with the promise of a soda. Prosecutors suggest the motive was sexual.

Hernandez’s defense says the Maple Shade, New Jersey, man has mental problems that made him imagine he attacked Etan. A defense psychiatrist diagnosed Hernandez, 55, with schizotypal personality disorder; symptoms can include delusions, which Hernandez’s family says he has had.

“Pedro Hernandez is the only witness against himself,” defense lawyer Harvey Fishbein told jurors last year. “Yet he is inconsistent and unreliable.”

The defense also argued that a different, longtime suspect was the more likely killer.

After the first trial, many jurors said they felt Hernandez’s confession was compellingly detailed and supported by his earlier admissions. Some jurors attributed his mental problems to a guilty conscience. But the lone holdout said he felt that Hernandez’s mental health history was a big factor and that there wasn’t enough non-circumstantial evidence to convict him.

Prosecutors’ and defense lawyers’ central arguments and evidence haven’t changed, but both sides are approaching the retrial mindful of the deadlock and the growing passage of time.

During jury selection this month, Fishbein asked prospective members to vouch that if they ended up becoming a lone holdout for or against conviction, they wouldn’t change their minds just because no one else agreed. And Illuzzi asked whether any potential jurors felt the 37-year-old case was “enough already” and shouldn’t be pursued further. None said yes.

About 5 percent of felony trials end in hung juries, and roughly one-third of them are retried, rather than plea-bargained or dismissed, researchers have found.

Officials and court groups don’t have statistics on the outcomes of those retrials. But anecdotally, most end in convictions, as do most trials in general, said James A. Cohen, a Fordham University School of Law professor who specializes in criminal defense.

(TM and © Copyright 2016 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2016 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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