O.J. Simpson's Daughter Sydney ... 22 Years After Mother's Murder

O.J. Simpson's daughter, Sydney Simpson, has resurfaced in St. Petersburg, Florida. She was quietly living there, until the swell of interest over the FX crime drama about her father.

Sydney, now 30, blended in with the rest of her neighbors doing the usual errands ... taking out the trash and walking her dog.

You can't help but feel bad ... Sydney was 8 and her brother, Justin, only 5 when their mother, Nicole Brown Simpson, was nearly decapitated at her Brentwood condo while they both slept upstairs. It's almost unthinkable ... but O.J. left Nicole's body for her kids to find. Luckily, cops intervened.

Florida ... a long way from Las Vegas, where O.J.'s currently in prison for a different crime.