WASHINGTON (WUSA) -- Marymount University in Arlington is mourning the death of a popular professor.

Rhett Leverett was killed Monday morning in Northwest Washington when he was hit by a car while walking his dog on Sixth and D Streets.

According to police, while at a red light the driver of a 2011 Dodge Charger had a medical emergency and the car began entering the intersection. As the passenger tried to grab the wheel and control the car it mounted on the sidewalk and struck Leverett.

The car then kept traveling northbound on the sidewalk and came to a stop when it hit a tree.

The driver and Leverett were taken to an area hospital. The driver was treated and released. Rhett Leverett, 60-years-old of NW D.C., was pronounced dead.

Leverett began teaching at Marymount in 1991.

D.C. police are still investigating the incident.

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