Unemployed nurse, 44, who shot three children before turning gun on herself dies from injuries as it is revealed she was having financial problems

• Police received reports of multiple shootings in Tabernacle on Thursday
• Troopers found Nicholas Harriman, 14, and sister, Nadia, eight in bed dead
• Alexander Harriman, 11, was taken to hospital in a critical condition
• Mother Jeannine LePage was also treated but died on Sunday
• A relative found all four of the family members in their mother's bedroom
• Authorities investigating reports one victim texted a friend on the day
• Said he wouldn't be coming into school because his mother was 'having a bad day'

By Associated Press and Snejana Farberov and Wills Robinson for MailOnline

Published: 14:36 EST, 23 November 2014 | Updated: 15:06 EST, 23 November 2014

A mother who shot her three children at their home in New Jersey before turning the gun on herself has died form her injuries, police have confirmed.

Unemployed nurse Jeannine LePage used a pillow to muffle the sounds of gunfire when she killed her 14-year-old son Nicholas Harriman and his eight-year-old sister Nadia in Tabernacle on Thursday.

Her other son, Alexander Harriman, 11, is currently in critical condition in hospital.

A relative who was in the house at the time but didn't hear the shooting, found the four family members in bed in their mother's room upstairs.

LePage was taken to hospital but New Jersey state police confirmed that she died on Sunday.

Reports have suggested that LePage was having financial difficulties at the the time. Authorities are also investigating whether one of the victims sent a text to a friend on the day of the shooting, saying he would not be in school because his mother was 'having a bad day'.

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Family tragedy: Jeannine LePage, 44, is accused of shooting dead her 14-year-old son and 8-year-old daughter, and wounding her 11-year-old son, before turning the gun on herself in New Jersey

Scene: Members of law enforcement are seen outside the Tabernacle home where two children were found dead and a woman and another boy were found injured

Nicholas appeared to have posted a picture of a gun on his Instagram account earlier this year, however it is not known whether it was used in the shooting.

State police said they received a call from another relative in the home at about 9.15am Thursday reporting that the mother and children had been shot.

Jeannine LePage, 44, had a single shot to her head; officials would not say where the children were shot.

All were found in the same room, and a revolver believed to have been the only weapon used was found, police said.

LePage and her 11-year-old son, Alexander, were taken to Cooper University Hospital in Camden.

Officials described them both as being in ‘extremely critical condition,’ suggesting that they are not expected to survive.

Victims: Nadia Harriman, eight, (left) and her brother Nicholas Harriman, 14, were shot dead in bed at the hands of her own mother, according to police

Weapon: Nicholas appeared to have posted a picture of a gun on his Instagram account, however it is not known whether it was used in the shooting. The gun used was owned by a deceased member of the family

Five other people live in the home, but authorities say none reported hearing any shooting because the mother used a pillow to muffle the sounds of gunfire.

Authorities said all the other residents of the home had been accounted for.

During a press conference Friday, State police Detective Geoff Noble said LePage used a handgun that had been purchased legally and was in the family for decades.

Authorities have not said what prompted the mother to shoot her children.

‘We may never know with certainty, depending on the condition of LePage, what that motive was,’ New Jersey State Police Captain Stephen Jones said. ‘That's something we're not prepared to address right now.’

After autopsies of the two children, police were able to narrow the time frame of the shooting to somewhere between 5am and 9am Thursday.

The Burlington County community is located in the sparsely populated New Jersey Pinelands, about 30 miles east of Philadelphia.

Victims: One of two children's bodies are taken from the crime scene after the shooting

Crime: A police line is secured in Tabernacle, where the four shooting victims were found inside a home

Distraught: A woman covers her hand as she speaks with investigators on Thursday

Neighbors said they did not know the residents of the house and did not hear any commotion Thursday morning until troopers arrived and helicopters began hovering overhead.

'It's very quiet, peaceful,' said Mike Watson, who has lived in the neighborhood for 25 years. 'You can hear a pin drop.'

The family's next-door neighbor, Jeanne Snedeker, was upset by the shooting, particularly Nadia's death.

‘It's hard for me when I sit in my sunroom and look out my window," Snedeker said Friday. ‘I can picture her running by and waving.’

Snedeker said the girl was outgoing and always smiling. She said she did not know their mother well.

She did recall a conversation they had in the past year or so about their mutual interest in rescuing animals.

About 200 people attended an emotional candlelight vigil for the family Thursday night in Tabernacle.

Search: Authorities looked at a sword in a trunk of car at the crime scene

Discovery: Also recovered was another weapon in the vehicle's trunk

Address: New Jersey State Police Capt. Stephen Jones, pictured, said the shootings occurred sometime between the overnight and 9am

Police: New Jersey State Police Troopers were seen speaking to a neighbor in the community on Thursday

Sources tell the Bucks County Courier Times that Mrs LePage was a licensed nurse, but according to her best friend, Monique Currier, LePage was unemployed and struggling to make ends meet.

Speaking to ABC6, Currier recalled that a few months ago LePage had confided in her that if things got really bad for her, she would take her own life.

LePage had been living in Tabernacle with her brother and his family. The father of her three children reportedly lives in Maryland.

LePage’s oldest son, Nicholas Harriman, was a freshman at Seneca High School in the Lenape Regional High School District. His sister, Nadia, and brother, Alexander, attended schools in Tabernacle.

Investigators are now trying to confirm reports that one of the victims allegedly sent a text message Wednesday saying they would not be in school because their mother was having 'a bad day.'