The victims are the driver and passenger in a car rear-ended by a semi on US-127 Tuesday afternoon.
Jackson Police are trying to figure out who stabbed a 22-year-old man, but they say the victim doesn't remember any details.
Police say the man showed up at Allegiance Hospital early Sunday morning after he says he woke up and realized he had been stabbed in the chest. He admits he was drunk and doesn't remember being hurt.
Police say they have no reports of fights or any stabbings.
The man has since been released from the hospital and is expected to recover.
2820 East Saginaw Street, Lansing, MI 48912