LaPORTE CO. — New details emerged Thursday in the case of a newborn found dead in a field in LaPorte County. Authorities unsealed the documents that explain why police are targeting Kathy Phillips as their prime suspect.

Prosecutors say DNA evidence shows Phillips is the mother of the newborn baby found dead in a Rolling Prairie field in March. She is charged with murder and neglect in the case.

Police say Kathy Phillips and her husband, Garry, told police she was never pregnant. And prosecutors say not only was Phillips pregnant, but also DNA evidence proves they both are parents of the dead baby.

Prosecutors say Garry Phillips told them he found a dead baby girl in a trash bag in his yard last march. They also say he told them his wife was not recently pregnant and he didn't know anyone who was.

But in the hearing, police testified DNA evidence proves Kathy Phillips was the baby's mother and Garry was the father.

“What were the results of the genetic testing?” asked prosecutor Rob Beckman.

“The results were that Garry Phillips was indeed the biological father of the baby that was found,” replied Det. Shayna Mireles.

At the hearing, police said they double checked the DNA evidence by sending it to a doctor at IU School of Medicine. The results were the same.

“What were the results of the test?” Beckman asked.

“They were 3.6 trillion times more likely to be the parents of the deceased baby than any other random couple,” said Mireles.

Police also said doctors told them the baby was likely born alive and that she may have died from hypothermia, but they could not say for certain. Meanwhile, people who know and love Kathy Phillips can't believe the murder charge.

“I can’t even see how they can say that she's the one who did this...having murder charges brought up against her,” Kathy’s brother, Carl Ruminski, told WSBT News.

None of the dozens of friends that police interviewed said they knew Phillips was pregnant. And those friends also told police that Garry Phillips was controlling of his wife.

Police say there were inconsistencies in Garry Phillips’ story. One was where he said how he found the baby by the smell, but police say the baby didn't have a smell and the ground was cold and hadn't started to decompose.

He also claimed he wiped a dirty window to see where the baby was, but police say all the windows were still dirty.

Click here to read a transcript of Phillips' Probable Cause hearing. (requires Adobe reader)