An Indiana man was sentenced this week to spend 15 years behind bars for his role in the attempted murder of his girlfriend’s infant niece.

As CrimeOnline previously reported, 20-year-old Sarai Rodriguez-Miranda was sentenced in May to 25 years in prison, two months after she pleaded guilty to attempted murder related to the January 2017 incident.

She said at the time that she was upset at her brother and his fiancee — the 11-week-old victim’s parents — for overstaying their welcome at her home.

Rodriguez-Miranda’s boyfriend, 23-year-old Sir Marshall S. Snyder III, was charged in July. He avoided prosecution on a similar attempted murder count by agreeing to plead guilty to a lesser felony count of aggravated battery.

After crushing up a potentially lethal dose of medication and putting it a bottle the baby reportedly never drank, Rodriguez-Miranda reportedly exchanged messages with Snyder.

“Why didn’t that baby die dude,” Rodriguez-Miranda wrote.

Her mother reportedly discovered the text messages and found the tainted baby formula in the refrigerator, as reported by People.

A short time later, investigators launched a probe into the case. It was at this point that Snyder reportedly helped his girlfriend escape her home town as she faced increasing scrutiny.

She left Fort Wayne, Indiana, for Michigan, where she lived with Snyder’s father until she was arrested several months later.

[Featured image: Sir Marshall S. Snyder III and Sarai Rodriguez-Miranda, Allen County Sheriff’s Department]