Thousands of Officers Honor NYPD's Wenjian Liu

Officer Wenjian Liu and his partner, officer Rafael Ramos, were killed Dec. 20 as they sat in their patrol car on a Brooklyn street.

Police officers line the streets before the funeral of Officer Wenjian Liu in the Brooklyn borough of New York, Sunday, Jan. 4, 2015. Liu and his partner, officer Rafael Ramos, were killed Dec. 20 as they sat in their patrol car on a Brooklyn street. The shooter, Ismaaiyl Brinsley, later killed himself. Seth Wenig / AP
SHARE THIS —
A painting with the likeness of New York City police officer Wenjian Liu is displayed prior to funeral services for him at Aievoli Funeral Home, Sunday, Jan. 4, 2015, in the Brooklyn borough of New York. Liu and his partner, officer Rafael Ramos, were killed Dec. 20 as they sat in their patrol car on a Brooklyn street.Julio Cortez / AP
Police officers wipe their tears during the funeral of New York Police Department Officer Wenjian Liu at Aievoli Funeral Home, Sunday, Jan. 4, in the Brooklyn.John Minchillo / AP
Some police officers turn their back to a large screen that displays New York City Mayor Bill de Blasio speaking during the funeral of Officer Wenjian Liu in the Brooklyn borough of New York, Sunday, Jan. 4, 2015. Liu and his partner, officer Rafael Ramos, were killed Dec. 20 as they sat in their patrol car on a Brooklyn street.Seth Wenig / AP