She is accused of silencing her daughter's oxygen machine in the days leading up to her 13-year-old's death.
A construction worker hit a gas line, cutting the city's supply.
The explosion happened Tuesday morning in Paynesville.
It's the deadliest crash on Minnesota roads since 2010.
The 22-year-old died in the fire.
The father is being held on 2nd-degree murder charges.
The man was taken into custody at the scene.
Steven Dale Row's obituary says he died May 23 near Grove City.
The fire was reported on Saturday morning.
Police have asked the public if they might know where he is.
The stores in Paynesville and Mahnomen will close.
The shed was filled with outdoor gear and equipment.
Tens of thousands of documents have been released on Thursday.
The investigative documents will go public on Thursday.
The release of the files has been subject to legal challenges.
A third rider and passenger were seriously injured.