Jacsun's parents, Adam Manson and Kiana Williams, confessed they are "chronic methamphetamine and marijuana users" and were staying at a Los Angeles motel when they woke up on New Year's Eve to the 6-month-old dead.
The pair placed his body in a suitcase and then dumped it.
What could be critical in prosecuting the couple, they said they never called police, "out of fear that they would be arrested for Jacsun's death."
EXCLUSIVE: Culver City parents describe death of 6-month-old baby Jacsun
They told detectives they rented the room for a second night and continued to smoke meth.
Kiana Williams recalls details about how she wrapped the lifeless body.
"Blue 'onesie' pajamas that had red accents on the cuffs...a gray blanket..a black trash bag... a pillow case...a black Adidas duffel bag," then placing the bundle in a rolling suitcase.
The parents have been charged with felony child endangerment resulting in death.
If Jacsun's remains are found, an autopsy could reveal details to support additional charges.