Carpio wants murder conviction tossed in detective's killing
A man serving a life sentence in the killing a Providence police detective is appealing to a federal court to have his murder conviction thrown out.
Esteban Carpio killed Detective Sgt. James Allen in 2005 inside police headquarters. Carprio was being questioned about a stabbing when he grabbed Allen's gun and shot him.
Carpio claims his rights were violated because his Boston lawyers didn't know Rhode Island court rules and that they didn't argue for a new trial after the guilty verdict.
He's also suing U.S. District Court, arguing his constitutional rights were violated.
The Rhode Island Supreme Court upheld Carpio's conviction in 2012.