An autopsy for baby Justice Rees has revealed that the baby boy likely died either from hypothermia or drowning.
The infant was found on the banks of the Rich Cut Slough in Knights Landing.
"We appreciate everybody's love and support, and the vigil last night. We were not there but we heard it was beautiful. Thank you and ... Just give us a little bit of space you know what I mean," Baby Justice Rees' father, Frank Rees, told FOX40's Rowena Shaddox on Thursday.
Now Yolo County Coroner's Office pathologists and Sheriff detectives have the difficult task of determining exactly how Justice died.
"The mere fact that it was an infant it makes it even more difficult for all of us. 'cause most of us do have children," said Yolo County Sheriff Ed Prieto.
An autospy conducted Thursday showed the baby died from drowning and hypothermia.
There were also minor scratches to his head and body, which Prieto said likely came from the brush the baby was found in.
But Prieto did not released any more information about why the baby's mother, Samantha Green and Justice were near the slough to begin with.
"The investigators are not going to leave one stone unturned," Prieto said.
Green has claimed she was abducted and sexually assaulted.
But Prieto said investigators are getting few other details from her.
"The only witness or person that we think is involved is the mother, who had the child. We do not have anything definitive from her as of yet," Prieto told FOX40.
But detectives are trying to establish a better time table of Green's disappearance, hoping to discover more clues.
"We're speaking to everybody. We're speaking to parents. We're speaking to brothers and sisters, aunts and uncles, friends. People who have seen her walking down the street. We're looking at cameras. We're trying to find out, where was she," Prieto said.
Meanwhile Rees said he and Green still are not ready to talk publicly about details surrounding their son's death.
"We haven't even had a chance to wrap our heads around that right now," Rees told Shaddox Thursday.
"You feel horrible for the child. He didn't have a chance in life," Prieto said.