NEW: The female person of interest contacted homicide detectives and was interviewed. This woman is no longer being sought in connection with this incident and is now only considered a witness.
LATEST UPDATE: A vigil was held Tuesday evening outside Lee's Discount Liquor to remember Matthew Christensen, the 24-year-old employee who was shot during the robbery.
Family and friends described Christensen as "the life of the party."
"He loved to make everybody smile and that's why he was so personable, everyone liked him," said Reggie Christensen, Matthew's brother.
Christensen was a student at Mojave High School, before moving to Arizona. He moved back to Las Vegas with his girlfriend several years ago. According to his family, he was just three weeks away from leaving the job at Lee's to pursue another opportunity.
"When we moved out to Vegas, his mother said 'take care of him Yvette' and I wasn't there to protect him [when he died]," said his girlfriend Yvette Rioux.
Now, friends and family just want to know why an innocent man was killed.
"Why? What was the point? Cause he couldn't open a safe? You had money, you could have had exactly what you left with, but with one less person dead," Reggie said.
A GoFundMe has been set up for Matthew Christensen.
Dozens of Family and friends gathering in front of Lee's Liquor store to remember Matthew Christensen @KTNV pic.twitter.com/HNNR9oUnAG
— Lesley Marin (@lesleymarin) April 20, 2016
UPDATE: LVMPD released video of this robbery and shooting during a press conference Tuesday afternoon.
3 men and a female person of interest are seen in the video at Lee's Discount Liquor.
Lt. Dan McGrath had very strong words about the crime.
"They produced their weapons, they committed an armed robbery and in a very heinous act shoot the victim who was not resisting, very, very disturbing high level of violence," he said.
Even District Attorney Steve Wolfson made a rare appearance at the LVMPD press conference to express his shock and disgust at the crime.
"This was an execution murder, this was a stupid, stupid murder and I don't get angry that often but I am really angry at this one," said Wolfson.
If you have any information on the whereabouts of these suspects, please call Crime Stoppers at 702-385-5555.
WATCH: Police release video of Lee's Discount Liquor robbery https://t.co/y4sa2Hh8Ng pic.twitter.com/md9UPfpEa9
— KTNV Action News (@KTNV) April 19, 2016
UPDATE: The employee shot during the incident died from his injuries Tuesday morning.
ORIGINAL STORY: An employee was shot during a robbery at a Lee's Discount Liquor in the southwest part of the valley Monday evening.
The incident was reported around 9:45 p.m. at the location in the 8700 block of West Warm Springs Road, west of Durango Drive. Police said three people entered the store and during an argument with the employee, the person was shot.
The employee was taken to University Medical Center in unknown condition. Police said the employee has undergone surgery.
No other employees were injured at the the time of the robbery.
Mr. Lee told 13 Action News that it is the first time they've had a shooting at one of their stores since he opened.
No one has been arrested yet in this incident. Police are continuing to investigate.
.@LVMPD has Lee's Discount Liquor at Warm Springs & Durango taped off. @KTNV pic.twitter.com/wDfEvBzs5g
— Bryan Callahan (@BCallahanKTNV) April 19, 2016
Robbery leads to shooting at Lees Liquor off of Warm Springs and Durango. 1 employee shot. @KTNV pic.twitter.com/8CGid8iKWs
— Lesley Marin (@lesleymarin) April 19, 2016
Mr Lee says it's the first time an employee has been shot in one of his stores since he opened. @KTNV
— Lesley Marin (@lesleymarin) April 19, 2016
