COEUR d'ALENE — Toward the end of a lengthy video-recorded police interrogation, a then 14-year-old Eldon G. Samuel III told investigators he should probably "die" for killing his brother and father hours earlier.

The boy sniffled and wiped away tears as he answered questions — some over and over again — about the details of the killing of 46-year-old Eldon Samuel Jr. and 13-year-old Jonathan Samuel on March 24, 2014. Prosecutors started playing the nearly five-hour interrogation video for jurors on Thursday and spent much of Friday finishing it.

The interrogation followed a lengthy strip search in which all his bloody clothes were taken, wrapped in paper and stuffed in bags as evidence. He was given another pair of pants and a T-shirt to wear, and then he sat in the police station interview room for nearly a half-hour before Coeur d'Alene Police Department investigators Brandon McCormick and Jason Wilhelm walked in to begin questioning.

Kootenai County jurors in Samuel's double-murder trial sat in a darkened courtroom Friday watching the video of the scrawny teen in his dark pants and T-shirt, sitting in a chair with the officers in front of him. He is being tried as an adult in 1st District Court.

A pile of tissues accumulated on the interview-room table as he wiped away his tears.

"Are you crying because you got caught?" Wilhelm said.

A couple slices of pizza Samuel was offered went uneaten. He drank from a water bottle and asked for a pair of socks and underwear on multiple occasions. They never arrived.

He told the investigators he shot his dad because he was scared his dad would kill him, saying his dad had just hit him in the chest and had abused him in the past. Samuel shot his father in Samuel's bedroom with a .45-caliber handgun.

His father crawled to Jonathan Samuel's room, leaving a blood trail across the living room of the cluttered, filthy house the three shared in Coeur d'Alene. The house was emergency housing provided by St. Vincent de Paul North Idaho.

The father stocked the house with guns, ammunition, knives, machetes and other weapons to prepare for a zombie apocalypse. He blocked windows and boarded up the back door and kept his older son trained and ready for zombies.

Under the questioning, Samuel responded "probably" when asked if he believed in a coming zombie apocalypse.

His father died in Jonathan's room, and Samuel said he fired three more rounds into his father's head for good measure. Right after that he killed his brother, using a shotgun, the .45-caliber handgun, a knife and machete.

McCormick asked Samuel why he killed his brother, when it was his father who was the one who was hitting him. Samuel initially denied killing his brother.

"I started really hating (Jon)," Samuel said.

Samuel blamed his autistic brother for his father's constant drug use and his mother leaving and not living with them. Tina Samuel lived in California, where the two boys and their father had lived prior to North Idaho. Samuel said the family would have been happy if not for his brother.

"Seemed like (Eldon Samuel Jr.) cared for Jon more than anybody," Samuel said.

The trial resumes next week.