From Boston.COM:

Naked couple die from S.C. rooftop fall

COLUMBIA, S.C. –Police on Wednesday were investigating how a naked couple fell 50 feet from the roof of a downtown office building to their deaths.

The bodies were found on the road by a passing cabdriver around 5 a.m. Wednesday.

Clothing was discovered on the roof, leading authorities to suspect the man and woman, in their early 20s, may have been having sex. Their identities were not released.

(more here)