Prosecutors said Brooks was in federal prison for child pornography when he became Andrews' pen pal. The two corresponded for several months before Brooks was released and moved in with Andrews at a Hemet mobile home community in August 2007.
Brooks was described as Andrews' caretaker and lover.
On May 31, 2008, both men disappeared and Andrews was last heard from telling a neighbor he was fine.
In the weeks that followed, Riverside County sheriff's detectives watched $130,000 empty from Andrews' bank account.
The two residents who cracked open the egg reported that Brooks arrived at their house volunteering to do free landscaping work
, said San Diego County Deputy District Attorney Dino Paraskevopoulos
Neither of the residents requested the work, but Brooks told them it helped him relax
and began creating a rock garden using the concrete egg as the centerpiece.
"They asked the defendant what was in there, he smiled and jokingly said, 'a head,'"
The concrete sculpture stayed on the property until September when one of the residents learned of Brooks' arrest a month earlier, and broke open the egg hoping to find more than $100,000 missing from Andrews.
It's unclear when and where Andrews died. A San Diego County Medical Examiner testified that Andrews died from asphyxia and was found with a plastic bag over his head, a belt around his neck and duct tape over his moth and nose.
An autopsy also revealed he had Viagra in his system.
Riverside County sheriff's detectives did not know where Andrews' body was when they arrested Brooks on suspicion of murder in August 2008.
He admitted to fraud but refused to tell police where the body was, Paraskevopoulos said.
Detectives testified that Brooks answered:"It's only going to show you I'm a murderer for sure."
He added. "Ed probably died from lack of air ... It wasn't for the money, it was because I lost my temper. Ed was so miserable, I wanted to take him out of his misery."