Seven jurors and two alternates who served in the first trial of the New Jersey man accused of killing Etan Patz returned to a Manhattan courtroom Wednesday – but this time they are sitting in the gallery rather than the jury box. The group includes lone holdout Adam Sirois, who refused to convict Pedro Hernandez in the 1979 kidnapping and death of the 6-year-old, causing a mistrial last year. Sirois arrived alone and minutes behind the others, who sat together in a row next to Etan’s father Stanley in the Manhattan Supreme courtroom awaiting opening statements in the retrial. Sirois took a seat on Hernandez’s side in the back. After 18 days of deliberations, he refused to believe a videotaped confession in which Hernandez admitted to choking the boy to death after luring him into a bodega with a soda. Defense argued the confession was unreliable because Hernandez was mentally ill and has a low IQ. Etan Patz (l) and his father, Stanley PatzPhoto: Stanley Patz ; Gregory P. Mango Prosecutors will begin opening arguments late Wednesday morning and defense is expected to go in the afternoon. Etan vanished as he walked alone for the first time to a school bus stop on May 25, 1979. His body was never found. In 2004, convicted child molester Jose Ramos was found civilly responsible for Etan’s death.