With regard to Ms. Sang's claim of sexual assault, please see be

(1): For an overview:

桑兰跨国诉讼案四年来的回顾（2）

http://blog.sinovision.net/home/space/do/blog/uid/3453/id/254836.html

 

(2): Ms. Sang has removed the claim of sexual assault from her civil lawsuit:

看看桑兰回应了什么，又回避了什么

http://blog.sinovision.net/home/space/do/blog/uid/3453/id/269682.html (last 2 paragraphs)

 

(3): In fact, her former attorney, Mr. Hai, had openly apologized already:

前律师海明道歉求饶 桑兰恐将独自面对滥诉惩罚

http://sports.ifeng.com/pinglun/special/sanglantianjiasuopei/content-2/detail_2012_03/07/13016558_0.shtml

 

(4): Lack of evidence does not equate lying, I agree.  But there is sufficient circumstantial evidence (identified above) to support the notion that Ms. Sang was not truthful in her claim.