Man charged in New York pharmacy killings to be arraigned

The gunman was seen on surveillance video during the Sunday morning robbery and shootings.Police charge David Laffer in weekend killings at a Long Island pharmacyLeffer's wife is also arrested and charged with robberyTwo pharmacy employees and two customers were shot, police say

New York (CNN) -- A man accused in the shooting death of four people inside a pharmacy in New York will be arraigned Thursday on murder charges.

Long Island resident David Laffer, 33, is accused of shooting two employees at Haven Drugs in Medford as well as two customers before leaving with prescription drugs Sunday morning.

He has been charged with first-degree murder and resisting arrest, Suffolk County police said.

Laffer's wife, Melinda Brady, 29, was also arrested. She was charged with third-degree robbery and obstructing governmental administration, authorities said.

Both Laffer and Brady will be arraigned Thursday at First District Court in Central Islip, Long Island.

Police identified the dead as Raymond Ferguson, 45, and Jennifer Mejia, 17, both pharmacy employees, as well as customers Bryon Sheffield, 71, and Jamie Taccetta, 33.

Mejia's death comes just before her graduation from Bellport High School on Thursday, said school secretary Maryann Malcolm.

CNN's Rachel Garrett, Jason Kessler, Max Markham and Jordana Ossad contributed to this report.

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