Deborah Strauch, 64, was shot inside her home in Deer Park on Friday night just before 9:30 p.m.
Strauch's 26-year-old son, Tyler was taken into custody a short time later. He is now awaiting arraignment.
There is no word yet on a possible motive for the shooting.
An investigation is underway.
ALSO READ | Long Island man, 59, arrested in connection with Gilgo Beach murders
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