HAVERSTRAW, N.Y. (CBSNewYork) — A 32-year-old mother was killed and the rest of her family was rushed to the hospital Wednesday afternoon after police say a driver deliberately plowed into them outside a convenience store in Rockland County.

Investigators say 35-year-old Jason Mendez, of Washingtonville, intentionally drove into two adults and six children, including an infant in a stroller, in the parking lot of a 7-Eleven in Haverstraw following some kind of argument.

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Officers walking Jason Mendez, 35, into court late Wednesday. (credit: CBS2)

After initially striking the family, police say the driver backed up and proceeded to hit them again.

Police say the driver was brandishing a knife when officers arrived at the scene. After refusing to drop it, police were forced to use a Taser on him.

The family members were rushed to nearby hospitals, where officials say the mother was pronounced dead. Her 35-year-old husband and their six children, all under the age of 10, were being treated for non-life threatening injuries.

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Haverstraw Police Captain Martin Lund called the deadly confrontation “a tragedy.”

“It doesn’t happen very frequently in our community,” he said. “It is a tragedy that happened today.”

Police say the initial argument may have stemmed from the husband asking Mendez to not blow cigarette smoke near his children.

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Mendez was charged with second degree murder and seven counts of attempted murder. He’s due back in court next Tuesday.