When I Google him, his name just comes up in connection with the murders. I did find two articles on newspaperarchives.com from 1977 that said Shroff's house was broken into the same night of the murders, so maybe he didn't have anything to do with it. I copied the link from one of them below. I hope the link comes through okay; it's hard to copy those PDF files from the newspaperarchive site. I can't find evidence yet whether he is still alive. If he is, he would be around 80 this year. Evidently, Jack Shroff's main residence was in Tulsa and he only lived part-time on that farm.
The article is in about the center of the front page in the link below, and says "Lead Uncovered in Scout Probe." The article is continued on the next page, but it's just a short paragraph and really doesn't say anything relevant.