The house is near Wales Center and Marquette roads in Wales Township (click to view map of area), which is about 15 miles west of Port Huron in St. Clair County. It's about 20 miles east of Armada.
Watch: Evidence taken from home
Two people at the home were arrested in connection to marijuana plants which police removed from the home. However, police have not made any arrests in connection to the murder.
April Millsap's body was found July 24 in a drainage ditch in Armada. Two joggers noticed the girl's border collie by a trail and followed it to Millsap's body.
An autopsy confirmed that Millsap was killed, but Armada Police Chief Howard Smith declined comment on how she died, other than that she was neither shot nor stabbed.
Investigators say Millsap left her house to walk the dog on the trail about 5 p.m. The middle school student's family contacted police when she didn't return home.
She recently graduated from Armada Middle School and was to start high school in the fall.
[Timeline]April Milsap homicide investigation
[Donate]Online fund for Millsap's family
State police were seeking information on a motorcycle that may have been in the area at the time of the killing. They've also released a sketch of a person of interest.
They were looking for a van but have ruled it out.
Below is a map of the area where FBI and police executed the search warrant. This specific area of Wales Township is known as Goodells, which is an unincorporated community in the northern part of the township.
Meanwhile, Millsap's funeral will be held 11 a.m. Friday at St. Mary Mystical Rose Catholic Church in Armada.
Visitation will be from 2 p.m. to 8 p.m. on Thursday at the Tiffany-Young and Hauss Funeral Home, 73919 Fulton Street in Armada. A service will also be held that day at 7 p.m.