A man in La Crosse has been charged with child sexual assault for the third time. The charges were filed against Vanin Dell McKinnon last week. Investigators say McKinnon sexually assaulted a girl between 2008 and 2012. They say the victim was four years old when the abuse began. McKinnon is already serving an 11-year sentence after being convicted in 2019 of repeatedly assaulting a young girl. His criminal record also includes a 2009 conviction for having sex with a 16-year-old girl. This latest alleged victim says McKinnon was supposed to be watching her while her mother was at work. She says he told her not to tell anyone what he had done.