Peel police are investigating the region's first homicide of the year, after a 22-year-old woman was found dead in a grocery store on New Year's Day.

Police were called to Airport Foods, a small Indian grocery store on Airport Road in Mississauga, shortly after 10:30 a.m. Thursday for a report of a possible stabbing.

When they arrived at the scene, officers found the body of Amandeep Kaur Dhillon with "obvious signs of trauma," Peel Police Const. Wayne Patterson told CTV.ca Friday morning.

It is believed she helped her family run the store and was working at the time she was killed. An autopsy on her body is scheduled for Saturday.

A 47-year-old man was also found at the scene suffering from non-life threatening injuries. He is currently in hospital under police guard.

Authorities said in a news release Friday afternoon that investigators interviewed the man and are looking into the information he provided.

However, police refused to comment on what -- if any -- relationship the man had with Dhillon or her family.

Const. Adam Minnion, spokesperson for Peel police, said at this point in the investigation, the man is not a suspect.

"We're still treating the second party as a victim," he said. "It's still too early to determine exactly what everyone's involvement is."

'Nice young woman'

A man who runs the business next door called 911.

"One lady came here and said the grocery guys are in trouble," he told CTV Toronto.

Those who knew Dhillon said she had a young child who lived in India with relatives. They also identified the male victim as the woman's father-in-law.

The mailman who works on the Airport Foods route said the company is a family-run business.

"I pass by here regularly and there's always a nice young woman in there," he said. "It's the last thing I would expect to happen here."

Investigators say they are reviewing tapes from local surveillance cameras for clues.

A post-mortem has not yet been scheduled, and police are withholding the name of the victim until they can speak with her family, Patterson said.

While homicides were down across the GTA in 2008, Peel set a record with 27 murders last year. That's a jump from 17 homicides in 2007 and 10 in 2006.

Anyone with information about this crime is asked to call the Peel police homicide squad at 905-453-2121, ext. 3205, or Crime Stoppers at 800-222-TIPS.

With a report from CTV Toronto's Jim Junkin