A jury found 24-year-old Tonnaire McNair-Matthews guilty on Tuesday.
Prosecutors say that McNair-Matthews -- along with David Hinson, Michael Caldwell, and Mahkiya Powell -- committed thefts by rear-ending drivers to get them out of their cars.
It happened both in Delaware and in Chadds Ford, Pennsylvania back in 2023.
During one of the carjackings, McNair-Matthews kidnapped and raped a victim before getting away.
He faces a maximum sentence of life in prison.