The women haven’t yet been identified, but police said they did not live in the home where their bodies were found.
The 29-year-old woman and her 13-month-old daughter were found dead inside their home Thursday night.
The 39-year-old man was found dead Monday, but officials say his death doesn’t appear to be exposure.
Melissa Mullins, 60, was found dead in her car Monday.
Eric Scott Love’s body was spotted Thursday afternoon near the Sixth Street bridge and pulled from the Grand River in Grand Rapids by a dive team.
Police say Angela Alexie, 24, gave birth in a garage in Eastpointe on Dec. 22 and left the baby. It died two days later, likely from exposure to cold weather.
Bond was set at $1 million for 24-year-old Angela Alexie of Eastpointe.
Police released more details in the case of the infant who was found frozen in a recycling center dumpster.
Investigators recovered several pieces of evidence from the home, including two bloody hammers and “a great deal of blood-stained clothing and towels.”
Crime Stoppers is now offering a cash reward in the death of the newborn baby.