Attack that killed Stony Mountain inmate in July gang-related, corrections officials believe

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A fatal attack on an inmate at Stony Mountain prison in July is believed to have been gang-related, federal corrections officials allege in Parole Board of Canada documents.

Dean Young, 37, began serving a nearly nine-year sentence for aggravated assault and break-and-enter at the federal prison north of Winnipeg in May 2022.

At about 7:30 p.m. on July 22, 2024, Young was allegedly attacked by a group of inmates in the facility’s maximum-security unit. He was pronounced dead en route to hospital a short time later.

Daniel Chatkana, 25, Randal Hastings, 31, Brennan MacDonald, 22, Wallace Sinclair, 20, Jeremiah Zglobicki, 22, and Keewatin Lachose 24, were charged with second-degree murder earlier this year.

The charges were announced by RCMP last week. Nukota Peters, then 22, was charged a few days after Young’s death.

None of the charges have been tested in court.

Late last month, corrections officials told the parole board they were opposed to the statutory release of Lachose, in light of his alleged involvement with the slaying and other violent behaviour.

Federal inmates are, generally, eligible to be released at two-thirds of their sentence, unless opposed by corrections officials and the parole board. Lachose was slated to be released March 26, but parole board officials ordered he remain behind bars.

The parole board documents include alleged details about the slaying and Lachose’s involvement.

“The motivation of the assault is believed to be security-threat-group… related as the victim was identified as an associate of a rival STG,” reads the March 21 parole board decision. “You and the other instigators belonged to or were affiliated with a different STG.”

Security threat group is corrections parlance for a gang.

The parole board decision indicates officials believe Lachose and five other inmates instigated the fatal attack, entering Young’s cell on the upper-floor of a maximum-security range.

“Seconds later he ran out of his cell with a bleeding wound from his chest,” the parole board documents state.

“Four of the original instigators pursued him, and when he reached the bottom of the stairs, you and the other remaining instigator also engaged in the assault on the victim.”

Lachose, parole board officials allege, punched Young before the victim ran and was caught by three other assailants who continued assaulting him.

Corrections officers used “inflammatory agents” to get the attackers to stop, but Young collapsed and was taken out of the area by paramedics before he died.

Lachose also has pending charges of obstructing a peace officer and possessing a weapon for a dangerous purpose at another prison for an incident in March 2024, in which he’s accused of trying to participate in a fight in the health-care ward.

He was found with a prison-made shank, officials allege. He was then transferred to Stony Mountain.

“You have shown a substantial degree of indifference to the consequences of your violent behaviours,” wrote parole board officials, noting he has not completed any programming while behind bars.

Lachose was identified as instigating 13 incidents in prisons since he began serving a penitentiary sentence of 52 months in May 2022.

He was sent to prison for armed robbery, assault with a weapon, forcible confinement, uttering threats, possessing a weapon for a dangerous purpose, carrying a concealed weapon and mischief to property.

On Nov. 26, 2021, Lachose held an employee hostage at the hospital in The Pas, threatening to kill the 17-year-old victim while holding scissors to his neck and searching throughout the building for narcotics using a stolen key and ID pass, before he was arrested by RCMP.

The victim was not physically harmed, but Lachose bound him with string. He was left with “significant mental injury” as he feared for his life. Earlier in 2021, Lachose had been caught milling around outside another location while carrying a knife.

Lachose is originally from a northern Manitoba First Nation and has long had substance-abuse issues, officials said.

erik.pindera@freepress.mb.ca