A New Jersey mother who shot all three of her children, killing two, died Sunday morning from her injuries after turning the gun on herself.

The 44-year-old Jeanine LePage died just three days after the shootings took place at her Tabernacle home about 30 miles from Philadelphia, Fox News reports.

Authorities said that the children were shot with a legally purchased handgun that has been in the family for decades. LePage used pillows to silence noise from the gun shots.

LePage's 11-year-old son Alexander Harriman was wounded and hospitalized in critical condition while her 14-year-old son Nicholas and 8-year-old daughter Nadia died from their wounds.

Autopsy reports show that the two children may have been shot early Thursday morning between 5 a.m. and 9 a.m.

Alexander is in extremely critical condition at Cooper University Hospital in Camden where officials suggest that he is not likely to survive, The Morning Call reports.

All four of them were found in the same bed last Thursday by other relatives in the home and the gun was found near LePage's bed. Authorities say LePage may have muffled the gun shot sounds to hide the killings from the other people in the house.

Jeanne Snedeker, the family's next-door neighbor, told the Daily News that she did not know the mother well besides having one conversation last year to share their mutual interest in rescuing animals.

State police Capt. Stephen Jones said authorities are not sure what prompted the 44-year-mother to shoot all of her children and then commit suicide.

"We may never know with certainty, depending on the condition of LePage, what that motive was," Jones said. "That's something we're not prepared to address right now."

Nearly 200 people attended a candlelight vigil for the family in the quiet neighborhood of Tabernacle Thursday night.

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