Questions raised by the first lethal injection remain unanswered . ( CNN ) -- Seven weeks after that death , Oklahoma is still investigating what happened , they say . A big issue involves the drugs used in executions , and where states are getting them . Oklahoma and ` ` could be just one more problematic execution away , '' expert says .
Questions raised by the first lethal injection remain unanswered . Seven weeks after that death , Oklahoma is still investigating what happened , they say . A big issue involves the drugs used in executions , and where states are getting them . Oklahoma and ` ` could be just one more problematic execution away , '' expert says .