BOSTON (CBS) — Suffolk County District Attorney Dan Conley made a plea on Tuesday for the caregivers of a young girl whose remains were found on Deer Island last month to contact authorities.

“If you are the parent or caregiver of this young girl please step forward,” Conley said. “Clear your conscience and help us identify this young child.”

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Conley said Tuesday that investigators have made about 20 well-being checks based on hundreds of tips that have poured in, but they haven’t turned up anything.

The toddler was found in a trash bag on the island in Winthrop on June 25.

“Nobody deserves that kind of ending,” Conley said. “She deserves to have her identity known to the public.”

Police released a digital sketch of the girl on July 2 and State Police said it has now been seen more than 45 million times.

(Image Credit: State Police)

(Image Credit: State Police)

State police have discounted any connection to missing girls Ayla Reynolds from Maine and Aliayah Lunsford of West Virginia.

The girl found on Deer Island is believed to have been about four years old at the time of her death.

She was about 3.5 feet tall, weighed about 30 pounds and had brown eyes and brown hair.

The composite image of the girl was created by the National Center for Missing and Exploited Children.

Investigators also released pictures of a pair of leggings and a zebra blanket that were found inside the trash bag where the girl was found.

A blanket and pants that were found with a girl who was found dead on Deer Island. (Images: Massachusetts State Police)

A blanket and pants that were found with a girl who was found dead on Deer Island. (Images: Massachusetts State Police)

Authorities said it does not appear the girl had been on the beach for very long.

Anyone with information is asked to call the Suffolk County State Police Detective Unit at (617) 727-8817, Massachusetts State Police at (508) 820-2121 or Winthrop Police at (617) 539-5806.

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