Authorities link Harrah teen to 2nd homicide
Suspect in stepfather’s death under new probe
A teenager is suspected of fatally shooting his stepfather then burning the body with the help of his mother, and authorities are looking into whether the youth was also involved in a second homicide this summer.
Oklahoma County sheriff ’s investigators were told there may have been a homicide in Harrah between July 22 and Aug. 8. But it wasn’t until Oct. 4 that the case cracked open. That day, investigators responded to a trespassing report in the 2200 block of S Dobbs Road.
According to court records, when investigators arrived, a woman told them her daughter said Robert Stockton Jr., 17, had been bragging about shooting and killing his stepfather, Anthony “Tony” Cannon, 43.
Investigators learned Cannon may have been killed near E Reno Avenue and Harrah Road.
On Oct. 5, investigators spoke with the woman again, and her 15-year-old
The daughter told investigators she was in a relationship with Stockton months earlier. Stockton owned a 9mm handgun and had recently acquired an AK-47 rifle, the girl told investigators.
She also said Stockton “told her he shot and killed his stepfather, Tony, in the shower,” according to affidavits for arrest warrants.
The girl elaborated that she knew a 16-year-old homeless boy who was with Stockton when the deadly shooting took place.
Investigators found the boy’s parents at a camp in the woods near Highway 62 and Old County Road. His parents said the boy was at the local library.
During an interview with investigators at the library, the boy said he had stayed with Stockton and his mother, Maryann Cannon, 41.
Sometime in late July, the boy said, he was in the living room at Stockton’s house playing a video game when he saw Stockton get up and walk toward the bathroom, according to the affidavits.
“A few moments later he heard four to five gunshots,” according to the affidavits.
The boy told investigators he went to the bathroom and saw Anthony Cannon dead in the bathtub, with a gunshot wound to his head and gunshot wounds in his chest.
Sheriff ’s deputy Steven Lira wrote in the affidavits that the boy “told us Maryann was present and told him if he said anything to anyone she would kill him.”
The boy also confirmed Stockton owned a 9mm handgun and had an AK-47 rifle, authorities said.
Anthony Cannon’s body was removed from the house and taken to the fence line at the back of the property where it was left until the following night, the boy told investigators.
The following night, the body was brought to the driveway in front of the house, authorities reported.
The boy told investigators Stockton and Maryann Cannon spent more than $200 on gasoline and burned Anthony Cannon’s body through the night and the following day.
He said Maryann Cannon, who also goes by the last name Beal, cleaned the crime scene and repaired bullet holes in the wall of the bathroom and bathtub.
The boy told investigators he left the house to find another place to live. A few weeks later, he learned the house where Anthony Cannon is suspected to have been killed was burned down.
He led investigators to a house in the 21000 block of E Reno Avenue, where they discovered what appeared to be pieces of human bones.
The Harrah Fire Department confirmed a fire at the location on Aug. 8.
Investigators obtained the land owner’s consent to search the property. A forensic anthropologist from the state Medical Examiner’s Office confirmed the pieces of bone were human.
The boy told investigators Anthony Cannon worked at a pizza restaurant.
Investigators called the business and spoke to a manager who claimed Cannon was once her husband, but he stole money from the business and disappeared.
Arrested in the case were Maryann Cannon and Stockton. Cannon is suspected of accessory to murder in the first degree. Stockton is suspected of murder in the first degree. Formal charges have not yet been filed, court records show.
Sheriff ’s spokesman Aaron Brilbeck told The Oklahoman a motive for the homicide is not yet known.
“There’s still many more layers of the onion to peel,” Brilbeck said.
In a separate homicide case, sheriff ’s investigators were called to a home near Reno Avenue and N Harrah Road on Aug. 28.
They discovered the body of Stephen Courtemanche, 64, shot to death.
An AK-47 rifle was stolen from the scene where Courtemanche was killed, authorities said.
Investigators spoke to a female minor who told them Stockton had been staying with her in Wellston. The witness said Stockton told her he gave his 9mm handgun to a 15-year-old boy, officials said.
On Oct. 11, a sheriff ’s deputy learned of a Snapchat video in which the teenage boy is suspected of having an AK-47 rifle, according to a probable cause affidavit for arrest.
The boy was taken to the sheriff ’s office for questioning with his mother present.
The boy said “he was approached by Robert Stockton who asked him to come with him because he was going to kill someone named Jesse and take his guns,” a deputy wrote in the affidavit.
At the time of his death, Courtemanche was the only person in the house, investigators said.
The person Stockton was referring to no longer lived there, but he did still have two rifles stored at the house, according to the affidavit.
The boy told investigators he and Stockton picked up an unidentified male who is an associate of Stockton’s. The male kicked in the front door of the house and the three of them went through the living room then down a hallway to a bedroom.
The 15-year-old boy said Stockton “pointed his 9mm handgun inside the bedroom and began shooting,” according to the affidavit.
The boy told investigators the gun jammed and Stockton inserted a different magazine into the handgun and began shooting again.
Courtemanche could be seen lying on the floor because the TV was illuminating the area, the boy told investigators.
He said Stockton and the unidentified male then went into a nearby bedroom and retrieved two gun cases, removed the rifles and placed them into a duffel bag.
The three then got into Stockton’s truck and left the scene, the boy told investigators.
The boy was arrested and is suspected of first-degree murder. He was transported to the Oklahoma County jail for processing and subsequent housing at the Pawnee County jail. Formal charges have not yet been filed, court records show.
The Oklahoman does not typically identify juveniles in criminal cases and is not identifying the 15-year-old boy because he has not been formally charged. The 17-year-old was previously named because police were searching for him as an allegedly armed and dangerous suspect.
Stockton has not been arrested in the case of Courtemanche’s death, authorities said.
The sheriff ’s office was still investigating the 15-year-old boy’s story.
Brilbeck, the sheriff ’s spokesman, said authorities were still looking for the male suspect who kicked in the door of the home where Courtemanche was killed.