BROOKLYN - NYPD Commissioner Bill Bratton met Friday with two sisters from Wisconsin who donated their Christmas money to benefit the families of fallen Detectives Rafael Ramos and Wenjian Liu.

Gretchen Lysne, 9, and her little sister Victoria were brought to New York by the Tunnels to Towers Foundation.  

Rachel, the girls' mother, says after seeing Ramos' funeral on TV back in December she talked to her husband about how they could help the families. Gretchen and Victoria decided to join in, too.

The girls told Commissioner Bratton that they thought the $20 of their Christmas money would help make the families of Detectives Ramos and Liu feel better.

The family says that they are not done giving back yet. On Sunday the family says that they will be taking part in the World Trade Center climb, which raises money for severely wounded veterans.