While sorting through the trash, workers found the body of the baby boy just days old and police are trying to track down the mother.
"At first they thought it was a doll," said Roseville Police Chief James Berlin. "When they looked a little closer they discovered that it was in fact, an infant."
It was a gruesome discovery at ReCommunity recycling center on Groesbeck in Roseville Wednesday night. Police say employees were sorting recyclables, then noticed a bundle.
"The child came down a conveyor mixed with the other debris," Berlin said.
Police say the dead newborn baby boy -- appearing only one to three days old, showed no signs of trauma, but was frozen.
"Obviously it's been zero or near zero the past several days," Berlin said. "We don't know when the child was placed in the dumpster."
A spokesman for ReCommunity said they are saddened by what happened and plan to assist police.
"They're highly upset and traumatized," Berlin said. "Same thing here, our officers are all upset it was an unnecessary tragedy."
Roseville police are awaiting autopsy results. Investigators are also sorting through mail and trash to try and determine where the baby came from, say garbage and recyclables go to ReCommunity from across southeast Michigan and even northern Ohio.
But a case in Ingham County is revealing a possible suspect.
"They had a case in late December 2013 where a woman killed her newborn child," Berlin said. "During the course of that investigation while waiting trial, she then became pregnant. And she had to deliver that baby in late December."
Meridian Township police tell Fox 2 Thursday that 24-year-old Melissa Mitin of Okemos is being held without bond. At that time, prosecutors learned that her baby boy is missing.
"She had a court appearance Tuesday and when they asked where the child was at she told the judge that 'I don't remember.'"
As Michigan state police process DNA samples, Berlin says they're working closely with Meridian Township police and won't stop until someone is held responsible for this baby boy's death.
"We don't have infants go missing very often thankfully," Berlin said. "This woman is already accused of killing one newborn child all indicators are pointing in that direction, but we won't know for sure until the DNA comes back."
Roseville police say Michigan State Police are expediting the DNA sample of the baby boy with those results expected Friday afternoon.