The 16-year-old girl’s death last month in Massachusetts that triggered request for clear probe has been pronounced a suicide, according to a death certificate acquired by the NBC Boston.

Last April 18, a jogger found the victim, Mikayla Miller, in the woods close to her apartment located in Hopkinton.

The findings on her death done by the medical examiner was revealed by the Middlesex District Attorney’s Office on Tuesday.

“Our investigation into the events surrounding Mikayla’s death remains active and ongoing,” the office said in an official statement, as reported by The Associated Press.

“We will continue to explore every investigative angle necessary as we do that work and intend to issue a complete and thorough report at the conclusion of the investigation,” it furthered.

Calvina Strothers, the victim’s mother, questioned the police probe on the incident.

The investigation was defended by District Attorney Marian Ryan, turning down accusations that her office had negligence on Mikayla’s case as she was Black and was part of the LGBTQIA community. “That is painfully false,” the attorney said.

According to Strothers, five individuals in their teens jumped by Mikayla on the day she was discovered lifeless.

Strothers also stated that her daughter’s cause of death was immediately reported to her, causing her to accuse that the conclusion was done without thorough probe.

The victim has taken 1, 316 steps from 9 to 10 p.m., as shown in the records from her phone. Ryan’s office said she travelled “roughly the same distance from her home to the location where her body was found.”

The probe also proved that she was in a suspected physical fracas with some of the four teens on April 17 at a recreation room while another teen was outside.

Investigators are yet to confirm the whereabouts of the five teens in the last hours Mikayla was seen.