 In several cases, he was unable to explain why he committed the murders: this was the case with Hardy, with whom Benjamin had an intimate relationship, but after doing drugs together, he said he strangled her for no apparent reason.
<meaning-changed>  In several cases, he was unable to explain why he committed the murders: this was the case with Hardy, with whom Benjamin had an intimate relationship, but after doing drugs together, he said he strangled her for no apparent reason.
 In several cases, he was unable to explain why he committed the murders: this was the case with Hardy, with whom Benjamin had an intimate relationship, but after doing drugs together, he sodomized and strangled her for no apparent reason.