A man from Danbury is going to prison for 30 years for killing a driver on I-84 in 2000.
Prosecutors say Alex Garcia shot Mark Rebong in a case of mistaken identity.
They say Garcia thought Rebong was a member of a rival gang, but Rebong was not involved in any criminal activities.
The case went cold until recently, when police re-interviewed people.
Garcia was already serving time for another shooting.