Answer:
He believes that Ruth is possessed, does not help her and still claims that she is the devil. This confirms what I believed about his character.
Step-by-step explanation:
This question is about "Chains", where Mr. Lockton is portrayed as a cruel, corrupt, racist and ultra-conservative man. He is not a good "master" for slaves, nor an admirable person. While reading, we can see that he does not have a good personality and is a mean and despicable character, who shows no compassion for anyone.
This character is confirmed when he sees Ruth having a convulsion. At that moment, instead of helping her, he says that she is possessed, acts in a prejudiced manner and does not help her.