NORTH MANCHESTER, Ind. (WANE) – Mikayla Munn found humor in the apparent drowning death of her moments-old infant and performed an Internet search on at-home abortions while she was pregnant, according to court documents recently unsealed.

Munn, a former Manchester University student who was charged with murder this week after authorities said she killed her infant son shortly after he was born back in March, reportedly showed no remorse or distress for just having lost her baby – even laughing several times, according to lengthy probable cause affidavit.

According to a news release from Indiana State Police, on March 8, Munn, 21, of Elkhart called 911 just before 11:30 p.m. When emergency crews arrived at Munn’s Manchester University dorm room, they found Munn in the bathtub with an infant boy she had just delivered. The boy was not breathing, so both were taken to a hospital where the infant was pronounced dead. Munn was treated and released.

Because of inconsistencies in the evidence related to what exactly took place, an investigation was started by the North Manchester Police Department and Indiana State Police.

That investigation, according to the affidavit, found that an autopsy on Munn’s baby showed air in his tiny lungs, meaning the baby took a breath after birth and prior to his death. He was found floating face down in the tub.

Click here to view the probable cause affidavit

Munn reportedly told police that she didn’t know she was pregnant, and that she went to take a bath to help with what she thought were bad period cramps, passed out and woke up to find a baby submerged in the water, according to the affidavit.

But, text messages months prior showed that Munn knew she was pregnant. In fact, the affidavit said she Googled “at home abortions that work” in February and how to tie off an umbilical cord the day she gave birth. The court documents said doctors and police think Munn waited 19 minutes after giving birth before calling 911.

A Manchester University spokeswoman said Munn dropped out shortly after the death of her infant.

She’s currently in the Wabash County Jail awaiting her trial in September. Calls to Munn’s attorney and the prosecutor weren’t returned Wednesday.WHAT OTHERS ARE CLICKING ON RIGHT NOW: