COPIAGUE, N.Y. (CBSNewYork) — The owner of a Long Island deli was shot and others were wounded in a deadly shooting Saturday.

A blood-stained door led to the scene in Copiague.

READ MORE: Amazon Web Services Outage Spells Trouble For MTA App Users, Among Others

Suffolk County police said it happened inside the deli on Great Neck Road and Garibaldi Avenue just after 6 p.m.

The bodega owner’s son was too shaken up to speak on camera but told CBS2’s Cory James he was in the basement when he heard multiple gunshots.

At least one of those bullets hit his father.

“One person inside was dead on arrival. Three other persons were shot. They were taken to area hospitals. One is in serious condition. Two are in critical condition,” Lt. Kevin Beyer said.

READ MORE: 'West Side Story' Returns To Paterson For Special Screening

Bolivar Rodriguez, 61, the owner of the deli; Juan Ramone Avilla Roque, 30; and Daniel Acosta, 40, were hospitalized with what police described as serious injuries.

Police did not identify the victim who was killed.

As police spent the night collecting evidence and processing the scene, neighbors stood outside in disbelief.

Now, police are searching for the suspect who took off after shooting the four victims. Detectives say it is too early to determine a motive.

Anyone with information is asked to contact Suffolk County Crime Stoppers at 1-800-220-TIPS or the Suffolk County Homicide Squad at 631-852-6392.

MORE NEWS: Police: Burglar Steals From Brooklyn Synagogue 3 Times