I wouldn't say his arrest is necessarily the kiss of death for his career. Woody Allen has, despite marrying the child in question. Michael Jackson has. Paula Poundstone, while not enjoying her previous level of fame, has a full year of concerts booked this year.

I'd say, it all depends on whether he is actually charged, and what he might be charged with.

BTW, according to a Department of Justice study released Sept 10, 2001 (it was buried under the news of 9/11) on child sex abuse crimes, debunked several myths about it. There is an article on it at the CNN archive here:

http://www.cnn.com/2001/LAW/09/10/arena.child.abuse.otsc/

I can't vouch for the the validity of the study one way or the other. But one of the three main myths about child sex abuse is who does the abusing. The article states:

"...many think strangers are the main perpetrators in sexual abuse cases. The study revealed that less than 4 percent of all sexual assaults are committed by strangers. So, for the most part, the sex offenders are people the children know. Also, the study found most of the abusers are middle-aged married men with children of their own. "

Of course, it doesn't reveal what percentage qualifies as "most" either.