(KTLA) — A man accused, along with his wife, of killing his 7-month-old boy, Emmanuel Haro, who has been missing for more than a week and is presumed dead, assisted investigators Sunday in Moreno Valley during a search for the child’s remains.

Authorities in both San Bernardino and Riverside counties launched an extensive manhunt on Aug. 14 after Rebecca and Jake Haro said their little boy had been kidnapped from a parking lot of a Yucaipa Big 5 Sporting Goods store after a stranger reportedly knocked Rebecca Haro unconscious, leaving her with a black eye.   

In the days following the alleged kidnapping, new revelations emerged, including that the couple was being uncooperative with investigators from the San Bernardino County Sheriff’s Department, that video of Rebecca Haro with a black eye on Aug. 3 may exist, that officials removed the couple’s 2-year-old from their custody and that Jake Haro has a previous felony conviction for willful child cruelty.   

Authorities also said that Jake Haro violated his probation in that case by being a felon in possession of a firearm.

In yet another unsettling detail that emerged during the investigation, the 7-month-old’s uncle on his mother’s side is serving 50 years to life in prison for murdering his girlfriend in their Palm Springs apartment and staging it as a suicide.

Less than four days after the alleged kidnapping, investigators turned their attention to the parents, using cadaver dogs during a search of the family’s Cabazon home and seizing Jake Haro’s vehicle, along with cellphones and other electronics to preserve and process any potential evidence.   

Rebecca Haro, 41, and Jake Haro, 32, were arrested Friday morning on suspicion of murder after a widely publicized search for their son. 

Escorted by deputies on Aug. 24, Jake Haro was seen in a prison jumpsuit assisting crews in the search for his son’s remains near the westbound 60 Freeway and Gilman Springs Road in Moreno Valley. Officials with the San Bernardino County Sheriff’s Department told Nexstar’s KTLA that cadaver dogs were also deployed during the operation.

Footage of the search and recovery mission showed dozens of people parked on the side of the 60 Freeway and fanning out into the dry brush along the hillsides and paths in the area as they looked for evidence of baby Emmanuel’s remains.

Sheriff’s officials confirmed to KTLA that as the afternoon’s search wrapped up, the 7-month-old’s remains had not been located.