Renell Clower of St. Louis was crossing the westbound lanes in the Florissant area about 2:30 a.m. Tuesday when he was struck by the tractor-trailer.
On September 4 and August 18, a few young men drove a dark SUV into neighborhoods, backed the car into a driveway or garage, broke in, loaded up the car and took off.
One crash on Friday tied up traffic on northbound I-270 in Florissant. The other affected Route 67 travel near Festus on Friday.
Prosecutors in Madison County have charged 24-year-old Travis King of New Douglas with two felony DUI-related counts.
To avoid delays, motorists need to alter their travel times by leaving earlier for their daily commute.
The Missouri State Highway Patrol says the crash happened just after 1 a.m. Sunday when a pickup truck rear ended an SUV packed with people.
Changing advisory speeds caution motorists of slowed traffic ahead.