Ancestry.com could be wrong

I remember when I first discovered just a few years ago that there is a link to my bloodline on my father's side to a notorious figure in history message you're being Jack the Ripper I didn't really know whether or not to believe it or whether it bothered me or one of motion I was doing that matter but in attempting to get the store open now on the famed notorious romantic serial killer has some dubbed him I discovered some truth to the legend such as his backstory as to why he was what he was the women he targeted and if he was just a guy who simply had a serious mental illness or not I wanted to be sure I wasn't in any danger of passed down through bloodline and generations