Former NFL star Darren Sharper once felt so strongly about violence against women that he wrote an essay about it for a book in 2010. He lamented how women are "undervalued and exploited," saying that as a father he felt compelled to speak up.

"Money cannot buy the women we love everyday security, which men take for granted," Sharper wrote in the book. "So, it's going to take strong, accountable men to educate young boys and influence other men to deal with women respectfully, honorably and fairly at all times."

Four years later, Sharper, 38, is scheduled to appear in a Los Angeles courtroom Thursday on charges that he raped two women after giving them drinks laced with a sedative to knock them out. Sharper posted $200,000 bail after he was arrested on Jan. 17, but prosecutors in Los Angeles will ask a judge to raise Sharper's bail to $10 million, noting that Sharper is under investigation for seven rapes and 11 druggings in four states. Sharper faces up to 30 years in prison for the Los Angeles charges alone.

The essay was not the only occasion in which women's health and safety became a personal cause for Sharper, who authorities now suspect of being a serial date rapist. On Sept. 22, Sharper sent a message on Twitter to promote a women's football camp near Slidell, La., which he was to attend two days later with New Orleans Saints receiver Lance Moore.

According to court documents, the alleged rape victim in Louisiana met Sharper at an event for Saints players the same day he sent the tweet. After the event, she accompanied Sharper to a bar and consumed a drink that Sharper gave her. Her next memory is waking up the next day with Sharper on top of her sexually assaulting her, the records show.