Aramazd Andressian Jr. was last seen April 21.
The father's attorney, Robert Nardoni, has previously said his client is innocent and that last week's arrest came as a surprise. The LA Times reports that Aramazd Andressian Senior was taken into custody in Las Vegas, where he is being held on $10 million bail until he is moved to LA County.
Andressian Sr. "has not been cooperative whatsoever" with investigators, and has told "untruths" during interviews, according to Mendoza.
None of the officials in downtown Los Angeles Monday would talk much about the specific evidence they had against the father, Aramazd Andressian Sr. of South Pasadena. Investigators believe Andressian killed his son a short time later and then drove about 145 miles (230 kilometers) later that morning to Lake Cachuma in Santa Barbara County.
The boy's body has never been found.
Andressian Sr., who detectives have said has given "inconsistent" and "misleading" statements, has hired an attorney and refused to cooperate with investigators, authorities said. Sheriff's officials said he took prescription pills and was found in a auto doused in gasoline. When police made contact with Aramazd Andressian Sr. on April 22, it was at a hospital. Andressian Sr. said he may have been attacked.
Investigators discovered that Aramazd Andressian had lightened the color of his hair, shaved off his beard and was making plans to head to a country where he could avoid extradition back to the United States, officials said at a news conference. The vehicle was doused in gasoline and there was a rag sticking out of the gas tank. Law enforcement officials intend to continue searching for the boy's body in Santa Barbara County, Mendoza said.
Details about new evidence were not released Monday, but authorities said Andressian's behavior in Las Vegas "was not consistent with a grieving parent".
Almost a week after the boy was reported missing, Andressian released a statement through his attorney.
"My heart is shattered and I will miss my son immensely each and every second of every day for the rest of my life", the boy's mother, Ana Estevez, said in a statement released by the sheriff's department. "Piqui was everything great in my life and I can not imagine the emptiness and the void that I will bear until we are together again one day", the statement said. She expressed great sorrow at the conclusion that her son is nearly certainly dead.
Boy's mother reported him missing on April 22, after his father, with whom she shares custody, failed to show up to their arranged meeting point to drop off their son.
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