Washington Gov. Chris Gregoire said Wednesday the state won't accept any more parolees from Arkansas until she's assured of a better system for sending them back.

Officials in Washington and Arkansas have been sparring over who had responsibility for Maurice Clemmons who killed four Lakewood police officers Sunday at a Parkland coffee.

Clemmons was shot to death early Tuesday by a Seattle police officer.

At issue is a warrant that Arkansas officials issued for Clemmons. Arkansas corrections officials say the warrant should have been enough to keep Clemmons in jail on an earlier Pierce County charge. But Washington officials say it wasn't handled properly in Arkansas.