Authorities investigating the murder of a one-year-old Massachusetts girl who died after she was allegedly assaulted by her Irish nanny, have recovered a bloody pillow, blanket and baby wipes from the infants crib.

Police said they plan to charge Aisling McCarthy Brady with murder in last week’s death of Rehma Sabir, a Cambridge infant who was hospitalized with head injuries on Jan. 14 — her first birthday. She died two days later.

According to court documents obtained by the Associated Press, authorities said they discovered a gruesome scene inside the baby’s bedroom, where state police reportedly found a bloody blanket and pillow in the crib and blood-stained baby wipes discarded in a diaper pail.

An upstairs neighbor told police that on the day the baby was hospitalized, she heard the infant crying for almost an hour before it changed to “extreme crying.”

The woman said she knocked on the front door of the apartment for about 90 seconds, timing the knocks in between the baby’s gasping so it would be heard by someone inside.

She said that her knocks went unanswered. Police said she told them she heard the baby cry for another 10 minutes.

“It started to slow and settle down before stopping completely,” police said. 

Alice Newton, medical director of the Child Protection Team at Boston Children’s Hospital, said the child sustained massive head trauma, according to the court documents cited by the AP.

“Abusive head trauma includes injuries caused by violent shaking as well as impact to the head either by directly striking the head or causing the head to strike another object or surface,” the court documents said.

Authorities said that Brady, 34, could be charged with murder following completion of an autopsy.

In an interview with investigators, Brady reportedly told the authorities that the baby seemed “her usual self” while she played with her that morning. She then told police that the baby eventually “slouched” in her chair, her eyes half-open, after lunch, authorities said.

According to court documents, as cited by the AP, Brady believed the baby was tired and put her in her crib. When she went into the bedroom about three hours later, she noticed that “Rehma was ‘clenching her fists and her arms and legs were stiff.’ ”

Brady said she got a wet cloth and put in on Rehma’s head. Around that time the baby’s mother returned home and called 911, according to police.

The AP reported that the baby’s parents, Nada Siddiqui and Sameer Sabir, told police that Brady had been their nanny for the past six months, caring for the baby while they worked.

Immigration officials said Brady was in the country illegally after arriving from Ireland in 2002 under a tourist program. She was only authorized to stay 90 days, they said.

This is not the first time Brady has been in trouble with the law, according to records obtained by the AP.

Court records indicated Brady was previously charged with assault and had two restraining orders taken out against her.

Last year, a Dorchester woman got a restraining order against Brady after she said Brady harassed her by posting a message on a parenting website, saying she saw the woman abusing kids on a playground.

In 2005, a former boyfriend got a restraining order after he said Brady assaulted him in a bar for talking to another woman.