A first call went to dispatchers at 8:40 p.m., but prison officials didn't confirm the request was real until 9:11 p.m., according to 911 audio. The first 911 call from inside the prison was made at 8:40 p.m. Key points and original sources are listed below.

• A first call went to dispatchers at 8:40 p.m., but prison officials didn't confirm the request was real until 9:11 p.m., according to 911 audio.S1

• The first 911 call from inside the prison was made at 8:40 p.m. It took about 30 minutes to verify its authenticity.S2

• More than half an hour passed before prison officials confirmed the call was legitimate.S3

• The 911 calls made by prison staff Christa Pike's botched execution on September 30 have been revealed. Recordings show a delay occured due to confusionS4