4-year-old boy and 91-year-old man die in separate crashes on Detroit's I-75; one under mother's possible influence, another due to rear-end collision.

4-year-old boy and 91-year-old man die in separate crashes on Detroit's I-75. A 4-year-old boy was killed in the first crash near Piquette Avenue, where authorities suspect the mother, a 30-year-old, was under the influence and the child was not properly restrained. In a second crash near Canfield Avenue, a 91-year-old man from River Rouge was killed when a 72-year-old woman rear-ended a vehicle stopped in traffic.