SYOSSET, Long Island (WABC) -- Five people were found dead at a home on Long Island, officials say.
Police responded to the home on Wyoming Court in Syosset just before noon on Sunday.
As a crime scene unit processes the grim scene, neighbors wonder how the quiet cul-de-sac could be shattered by something so violent.
"I've been here for almost 50 years, so it's terrible to hear something like this," said Gary Duchnowski.
A few heard the gunfire, and police arrived just before noon to find one man dead of a self-inflicted gunshot wound on the lawn. The other four victims were found inside the home.
"At first I heard it was a murder suicide, and that's pretty bad. And then I heard four people murdered and then a suicide, so it was something you don't hear very often, let alone something in your own town," said Mike Steffens.
As Nassau County Homicide Squad headed into what is expected to be a long night, neighbors were putting some of the pieces together.
Some neighbors knew the mother and son who lived in the home for decades - but everything changed last week when the 95-year-old woman died.
"The mother who owned the house recently passed away. Family was in, and from what I understand is there was possibly a dispute," said Corey Margulefsky.
In fact, neighbors say a real estate agent arrived to help the family in town take the next steps to list the house, but it was already a crime scene.
One neighbor told Eyewitness News that the idea of losing the house was just too hard for the son, who had lived there all his life.
Police say they will have more to disclose about their findings on Monday, and for now are not identifying any victims, the shooter, a possible motive, or saying whose gun it was.
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