Police are investigating an early morning homicide involving a member of the cleaning crew at a General Motors assembly plant in Lake Orion this morning.

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The plant remains closed today as the Oakland County Sheriff's Department conducts an investigation into the alleged homicide. The incident occurred early this morning, around 1:30 am between two members of the cleaning crew at the facility on Giddings Rd. in Orion Township

One Person Dead, One in Custody

Police were called to the plant just after the early morning incident. When they arrived, they found a 49-year-old Pontiac man unconscious and bleeding. Police performed CPR but were unable to save the man who has been identified as Gregory Robertson.

Detroit's WDIV-TV reports that the 48-year-old man who is suspected of killing Robertson was found standing in a nearby dock of the plant He was taken into custody without incident and authorities say detectives are planning to present the case against him to prosecutors on Friday. (8/12)

Neither of the men was directly employed by General Motors, each was an employee of a third-party company contracted to clean the facility. However, the TV station reports that the victim had been an employee at the Orion Assembly facility at one point in the past.

Police Investigation Continues

The motive behind the altercation and alleged homicide has not yet been revealed. Police have recovered the item they believe was used to attack the victim but are not currently saying what that item is.

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