Prosecutors said Ryan Wyngarden killed the couple to cover up a past incestuous relationship.
Three more people were stabbed in the attack around 6 a.m. Saturday in York Township.
A man who was living with a woman and her son in a Downriver apartment has been charged in their deaths.
The 30-year-old said it was actually his live-in girlfriend who stabbed the couple’s 13-month-old daughter to death.
Dressed in blue jail garb, chained at his hands and ankles; Curtis Hampton was arraigned on two counts of first degree murder.
The women haven’t yet been identified, but police said they did not live in the home where their bodies were found.
A man suspected of killing his 29-year-old girlfriend and infant daughter inside their Detroit-area home is now facing murder charges.
The 29-year-old woman and her 13-month-old daughter were found dead inside their home Thursday night.
Sylvia Majewska is charged with first-degree murder in the Nov. 23 killings at her home in Oakland County.
Felando Hunter and Frederick Young were charged with the execution-style killings of 18-year-old Jacob Kudla and 17-year-old Jourdan Bobbish.