Tragedy Strikes: 4 Buffalo Grove High School Students Killed in Wheeling Crash.

A growing memorial is paying tribute to four Buffalo Grove High School students killed in a crash in Wheeling, Illinois. The four teenagers were in one vehicle, when authorities said the driver went through a red light, hit two other vehicles and a power pole. A fifth Buffalo Grove High School student in the same vehicle was critically-injured and is in the ICU. Two other people in the crash were hospitalized. The cause of the crash is under investigation.