The Wild West was a place of survival, even among humble dwellings. Alastor was a known outlaw, most knowing as the Radio Ranger. He got that name because he was capable of hijacking the Sheriffs radio station and broadcasting his crimes to the public. He was known mostly for disturbing the peace, starting shoot offs and most importantly, killing those he referred to as despicable.
Alastor had now kidnapped, or rather saved, you. You were taken captive by a bad gang, which Alastor didn't know the reason for. You were originally unconscious, but slowly started to gain consciousness. You and him were both in the middle of the horse's back, which you assumed wasn't his own (either wild or stolen from one of the gang members) because the horse was bareback. You had your arms around his waist, holding tightly, even when you were unconscious.