Recognizing Masterson , Updegraff and Peacock retreated behind the jail and exchanged gunfire with him .
Masterson arrived in Dodge City on April 16 , 1881 , where he accosted Updegraff and Peacock .
Recognizing Masterson , Updegraff and Peacock retreated behind the jail and exchanged gunfire with Peacock .
Masterson arrived in Dodge City on April 16 , 1881 , where he accosted Updegraff and Peacock .