A Boston woman who pushed her two young children from the top of a parking garage and then killed herself in a double murder suicide has been identified.

Erin Pascal, 40, was named on Thursday as the woman whose body was found on the sidewalk next to those of her two young children; four-year-old daughter Allison and 16-month-old Andrew.

Police believe she threw the kids off the nine-story structure before plunging to her own death on Christmas Day.

Pascal's vehicle was found on the roof the parking garage in the city with the doors flung open.

Authorities previously said that two child car seats were found in the vehicle - one facing forward and the other facing backward.

'Today is an extremely sad day as we begin to put together the pieces of a tragedy that took place yesterday, on Christmas,' Suffolk County District Attorney Rachael Rollins said on Thursday.

WCVB reports that the woman's husband called police to say that there had been an argument and that she was suicidal.

Pascal is pictured with a small child in an undated social media snap. The mom-of-two plunged to her death alongside her two children from a nine-story parking garage in Boston on Christmas Day

Police believe Pascal threw her children off the nine-story structure (right) before plunging to her own death on Christmas Day

Pascal was the director of corporate social responsibility and community relations at Sanofi Genzyme, a company based in nearby Cambridge. Her LinkedIn photo is pictured

Pascal was the director of corporate social responsibility and community relations at Sanofi Genzyme, a biotechnology company based in nearby Cambridge.

She was a graduate of Brown University, where she was a classmate of The Office star John Kransinski.

It is unclear if anything specifically drove Pascal to kill herself and her children, but Rollins said their deaths highlight the 'invisible struggles' that many face when dealing with depression or mental health issues.

'For a parent to come to a place in which they harm their children in this way indicates that their mental health struggles were severe and in need of immediate support. Mental health issues are not specific to one type of individual.

'This Christmas Day tragedy demonstrates the urgency of addressing mental health, suicide and homicide.

'We have to do more to address these significant public health issues that impact all of us and Suffolk County.

'Most importantly, I want to extend my sincere condolences to this family,' Rollins said.

Police found baby's shoes and a pair of sunglasses near the abandoned car.

There have been no suicide notes found and no known complaints about the mother, Rollins said.

Pascal tied the knot to her husband, Adam, back in 2013.

The couple welcomed their daughter, Alison, two years later, before son, Andrew, was born midway through 2018.

The family's car was found with the doors flung open on the roof of the parking garage

Pascal tied the knot to her husband, Adam, back in 2013. She is pictured on her wedding day

Police found adult and children's clothes at the scene next to where their bodies were found

Pascal studied English at Brown - one of the country's most prestigious universities.

She wrote for the college newspaper, the Brown Daily Herald, where an editor remembered her as being 'very serious' and 'very intense'.

After graduation in 2001, the talented writer went to work as a reporting intern at The Providence Journal.

On Thursday, former colleagues remembered her as 'a very sensitive young woman, wise beyond her years.'

She later went in to communications, where she worked her way up the ranks at Sanofi Genzyme. On Thursday, the company released a statement saying their thought are with Pascal's family.

The prosecutor described the scene as 'awful' and especially heartrending because it happened on Christmas.

'There were children's shoes and an adult shoe. Just belongings from the children and the mother strewn upon the street.

'The impact of the fall was visible from the street,' Rollins said.

The parking garage -owned by Northeastern University - is the same one where a college student leaped to his death in May in a suicide his girlfriend is now being charged for.

Another person committed suicide at the same site on December 9, according to Heavy.

Additional security has been put on at the scene, with Northeastern saying they have 'indefinitely blocked pedestrian and vehicular access to the top two floors of the garage'.

If you or someone you know is struggling, please phone the National Suicide Prevention Lifeline on 1-800-273-8255