Buddhist monks are to lead the funeral of the second New York Police Department officer shot to death in a patrol car two weeks ago.

Thousands of officers are expected to attend the Sunday service for Officer Wenjian Liu (WEHN'-jihn loo) following a somber wake the day before.

On Saturday, visitors bowed their heads three times before Liu's open casket at a Brooklyn funeral home as rain and snow fell on those lined up for blocks to pay their respects.

The 32-year-old officer had served for seven years and was married just two months before he was killed along with partner Officer Rafael Ramos on Dec. 20.

Their killer committed suicide.

The deaths come at a tense time in New York and throughout the country over police conduct.