Read it through once

The effect which this had upon me was an inspiration to him, and he turned himself loose upon his subject with interest and energy. He left generalizing, and went into details,--began with his first murder; described it, told what measures he had taken to avert suspicion; then passed to his second homicide, his third, his fourth, and so on. He had always done his murders with a bowie-knife, and he made all my hairs rise by suddenly snatching it out and showing it to me.