She was 20 in 2000. The article was about what happened in 2000. Look at the article info.
2 March 2000
Lachele Covington, a 20-year-old actress, filed a police report accusing Cosby of touching her inappropriately after a dinner at his house, according to the New York Post. The district attorney’s office decided that no crime had been committed. http://www.theguardian.com/world/2014/nov/24/the-bill-cosby-sexual-abuse-claims-accusation-by-accusation
Got it ... thanks.