It happened Tuesday afternoon in the parking lot of a WoodSpring Suites on E. Linden Avenue.
Officers arrived on the scene at around 12:10 p.m. to check on a vehicle when they discovered both occupants, a man and a woman, were dead.
The circumstances surrounding the incident remains unclear.
It is being investigated by the Union County Prosecutor's Office and police as a murder suicide.
Officials say there's no ongoing threat to the public.
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