The mother drowned in the bathtub because she "did not want to hear her son crying," the police said.

PHOENIX – Police released troubling new details regarding the death of a four-week-old baby in Arizona after his 19-year-old mother was charged with first-degree murder.

According to the police report obtained by KPHO, while the investigators were interviewing the mother, Jenna Folwell, her mobile phone had been searched with a warrant.

The detectives searched for "ways to die instantly", "missing babies cases", "how long does it take for babies to drown" and "why do parents kill their babies" in research history? from his mobile phone.

Chandler's police say that there have been more than 100 different searches on this type of topics.

Folwell had called police Wednesday afternoon while he was at Brooks Crossing Park, near Alma School and Warner Road, claiming that his baby had been kidnapped.

While the police were talking to Folwell, a search was made at her home where she lives with her father. Police said they found a black bag with the dead baby inside.

The police questioned Folwell about the searches on her phone and she confessed to having entered the bath with her baby and then let her go. She said that she had chosen this path because she "did not want to hear her son crying".

Folwell told the police that her son was in the bathtub for about a minute, and then regretted his decision. She took him out of the bathtub and tried CPR. She said that she had then put her son in the backpack and had gone to the park to report the kidnapping.

Police said the baby was found still wet in the gym bag between two blankets.

Folwell is charged with first degree murder.

The baby's father, whose name was not disclosed, spoke at the initial appearance in front of Folwell.

"Rainer was a perfect baby and had such a happy and peaceful behavior," he said. "I can never have a first with my son. … She took my life with Rainer when she took her life. "

The father also said that Folwell could have made contact with him and his family.

"We would have taken sole custody," he said.

He also asked that she be held without bail.

"I want her to live a life without parole," he said. "She can live every day knowing what she has done to the innocent poor child."

The judge set a $ 1 million bond only in cash for Folwell.