"We believe this incident could've started the night before and then carried over into the early morning hours.
There were reports of the smell of smoke early in the morning."
Detectives gathered documentation from the scene to establish a potential motive, though no suicide note was left behind.
"No suspects remain outstanding and the investigation shows that this was a murder-suicide, with a fire being started after the murders," said Capt.
Jake Sparks.
Amanda Karolkiewicz served as a substitute teacher at Grand Haven Area Public Schools, where officials previously honored her as a premier substitute at Peach Plains Elementary.
Following the incident, Superintendent Kristin Perkowski addressed the tragedy in a message sent to local families.
"Our hearts are with all those impacted, and we know many throughout our community may be grieving and struggling to process this news," said Kristin Perkowski.
School officials confirmed they are preparing counseling resources and crisis hotline services to support students and community members affected by the tragedy.
"Regardless of the details that may emerge, this is a devastating incident and a tragic loss for our community," said Kristin Perkowski.
"Our team is preparing to deploy support for those who may need it.
Although school is not currently in session, we will be ready to respond if and when additional information becomes available."
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School leadership urged the public to refrain from unverified claims while the police investigation continues.
"We ask everyone to respect the privacy of those involved and avoid speculation or sharing information that has not been officially confirmed," said Kristin Perkowski.
