MEDFORD - ? Residents continued to swarm Haven Drug store this morning to pay tribute to the four victims who were gunned down inside the store on Sunday.

News 12 Long Island?s Eileen Lehpamer spoke to residents who were holding vigil and hoping that police have arrested the right person.

This morning News 12 was on the scene in front of the pharmacy when police activity ensued about a mile away at a home in Medford. A resident told News 12 that she had called the police around 7 a.m. because there was a suspicious vehicle outside her home in Medford. The vehicle was an undercover police officer.

Newsday has identified those arrested as 33-year-old David Laffer. The victims of the massacre include a 17-year-old high school senior, a 45-year-old pharmacist from Centereach, a 71-year-old Medford man and Jamie Taccetta, 33, who was set to be married in October.

Sources: Police make arrest in Medford drug store massacreContinuing coverage: Medford pharmacy massacre