MADISON, Wis. - Officers were using a drone and police K-9s Wednesday to search the area where the car connected to a person of interest in a grocery store lot killing.

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Madison police are searching multiple locations for a person of interest in a fatal shooting at Metro Market on Cottage Grove Road Tuesday night, officials said.

On Wednesday, police said a silver VW Jetta connected to shooting suspect 26-year-old Christopher T. O'Kroley was found unoccupied on Galileo Drive. The Middleton Fire District joined Madison law enforcement and K-9s in the area of Galileo Drive and Aries Way searching for O'Kroley.

A 25-year-old woman was shot and killed in the 6000 block of Cottage Grove Road just after 8 p.m. Tuesday, Madison Police Department spokesman Joel DeSpain said.

DeSpain said the shooting was targeted, and not random. Officials said O'Kroley and woman who was killed knew one another, but investigators are still determining what the relationship was.

No one is in custody and O'Kroley, of Madison, is considered a person of interest. He is described as white, 6 feet tall and weighs 180 pounds. He has brown hair, blue eyes and may be wearing glasses.

Police said Wednesday morning that O'Kroley should be considered armed and dangerous, and anyone seeing him should call 911 immediately.

O'Kroley was last known to be in the Grandview Commons neighborhood at about 10 p.m. Tuesday, according to a report.

Police are actively searching for O'Kroley. Numerous squad cars were parked outside his home on North Thompson Drive on Wednesday morning.

MPD Police Chief Mike Koval said this is Madison's first homicide of the year.

A Metro Market employee said the grocery store closed for the night Tuesday after the shooting, but the store reopened Wednesday morning.

James Hyland, a spokesman for Roundy's, the parent company that owns Metro Market, said in a statement Wednesday morning that the woman had worked at the store for about three years.

"The entire Roundy's and Metro Market families remain saddened by the loss of our colleague," Hyland said. He said the company is working with police in the investigation. The company also said it has received an "outpouring of support" from the community.