The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
City officials stand beneath an American Flag honoring the late San Francisco Mayor Ed Lee at City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is carried into City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is carried into City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee arrives at City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
City officials line up to pay their respects to the late San Francisco Mayor Ed Lee outside City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is on display at City Hall on Friday, Dec. 15, 2017. (Michael Macor / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is carried into City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
The casket holding the body of late San Francisco Mayor Ed Lee is carried into City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
Flowers from mourners sit on the steps at San Francisco City Hall on Friday, Dec. 15, 2017. (Santiago Mejia / The San Francisco Chronicle)
Acting Mayor London Breed is seen during a public viewing for San Francisco Mayor Ed Lee at City Hall on Friday, December 15, 2017. (KGO-TV)
Former Mayor Willie Brown is seen during a public viewing for San Francisco Mayor Ed Lee at City Hall on Friday, December 15, 2017. (KGO-TV)
San Francisco Police Chief William Scott is seen during a public viewing for Mayor Ed Lee at City Hall on Friday, December 15, 2017. (KGO-TV)
A crowd is seen during a public viewing for San Francisco Mayor Ed Lee at City Hall on Friday, December 15, 2017. (KGO-TV)
A crowd is seen during a public viewing for San Francisco Mayor Ed Lee at City Hall on Friday, December 15, 2017. (KGO-TV)