Original: Arnold learned of AndrÃ's capture the following morning, September 24, when he received Jameson's message that AndrÃ was in his custody and that the papers AndrÃ was carrying had been sent to General Washington.
Simplified: Arnold learned of AndrÃ's capture the following morning, 24 September, when he received Jameson's message that AndrÃ was in his custody and that the papers AndrÃ was carrying had been sent to General Washington.