The state has executed inmate Ernest Martin for the 1983 shooting death of a Cleveland store owner during a robbery. Martin long claimed another man committed the crime. He was executed this morning after dropping a mental retardation claim and losing a late court appeal. The U-S Supreme Court yesterday turned away Martin’s request to stop the execution so he could argue his claim that he had inadequate legal counsel. Martin was pronounced dead at 10:11 a-m. Prison spokeswoman Andrea Dean says there were no execution witnesses representing the family of victim Robert Robinson. She says it’s the first time that’s happened since the state resumed executions in 1999.