The fastest way to shut this down is to get Ganz and his crew confessing to a premeditated crime on tape.

最快的解决方法是录下甘斯和他同伙亲口承认预谋犯罪。

All along I was strongly under the impression that we were dealing with a cold-blooded and premeditated crime committed by some one who had been contented (very cleverly) with using M. Renauld's own plans for throwing the police off the track.

我都强烈地认为， 我们正在处理一场冷血的、有预谋的犯罪， 犯罪的人满足于（非常聪明地）利用 M. Renauld 自己的计划来让警察偏离轨道。