Final Chicago Assignments

Chicago Blackhawks center Dennis Rasmussen (70) celebrates his goal past Vancouver Canucks goalie Ryan Miller (30) with teammates Andrew Shaw (65) and Bryan Bickell (29) during the third period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. Chicago won 4-0. (AP Photo/Andrew A. Nelles)

Chicago Blackhawks center Dennis Rasmussen (70) scores past Vancouver Canucks goalie Ryan Miller (30) with left wing Bryan Bickell (29) during the third period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. Chicago won 4-0. (AP Photo/Andrew A. Nelles)

Vancouver Canucks left wing Chris Higgins (20) loses his stick next to Chicago Blackhawks left wing Bryan Bickell (29) during the second period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. (AP Photo/Andrew A. Nelles)

Vancouver Canucks goalie Ryan Miller (30) and defenseman Yannick Weber (6) defend against a shot from Chicago Blackhawks center Dennis Rasmussen (70) during the second period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. (AP Photo/Andrew A. Nelles)

Chicago Blackhawks right wing Andrew Shaw (65) battles Vancouver Canucks defenseman Yannick Weber (6) during the second period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. (AP Photo/Andrew A. Nelles)

Chicago Blackhawks center Artem Anisimov (15) battles Vancouver Canucks right wing Derek Dorsett (15) during the second period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. (AP Photo/Andrew A. Nelles)

Chicago Blackhawks right wing Marian Hossa (81) and Vancouver Canucks defenseman Matt Bartkowski (44) collide during the second period of an NHL hockey game in Chicago, Sunday, Dec. 13, 2015. (AP Photo/Andrew A. Nelles)

Chicago, IL - December 13, 2015: Linda Chatman on Sunday, Dec. 13, 2015, in downtown Chicago, Ill. Chatman is the mother of Cedric Chatman, killed by police in 2013. CREDIT: Andrew A. Nelles for The New York Times

Hazel Crest, IL - December 11, 2015: Dana Cross at her home on Friday, Dec. 11, 2015, in Hazel Crest, Ill. Cross is the mother of Calvin Cross, a 19-year-old killed by the police in 2011. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 11, 2015: Lorenzo Davis outside of the Chicago Urban League office on Friday, Dec. 11, 2015, in Chicago, Ill. Davis, a former IPRA employee who was fired, he says, for not going easy on cops. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 11, 2015: Lorenzo Davis at the Chicago Urban League office on Friday, Dec. 11, 2015, in Chicago, Ill. Davis, a former IPRA employee who was fired, he says, for not going easy on cops. CREDIT: Andrew A. Nelles for The New York Times

Chicago Bulls guard Jimmy Butler (21) fouls Charlotte Hornets guard Jeremy Lin (7) during the second half of an NBA basketball game in Chicago, Saturday, Dec. 5, 2015. Charlotte won 102-96. (AP Photo/Andrew A. Nelles)

Chicago Bulls center Joakim Noah (13) battles for the ball with Charlotte Hornets forward Spencer Hawes (00) during the second half of an NBA basketball game in Chicago, Saturday, Dec. 5, 2015. Charlotte won 102-96. (AP Photo/Andrew A. Nelles)

Charlotte Hornets guard Jeremy Lin (7) battles Chicago Bulls center Joakim Noah (13) during the first half of an NBA basketball game in Chicago, Saturday, Dec. 5, 2015. (AP Photo/Andrew A. Nelles)

Charlotte Hornets guard Jeremy Lin (7) drives past Chicago Bulls guard Derrick Rose (1) during the first half of an NBA basketball game in Chicago, Saturday, Dec. 5, 2015. (AP Photo/Andrew A. Nelles)

Chicago Bulls forward Doug McDermott (3) shoots past Charlotte Hornets guard Nicolas Batum (5) during the first half of an NBA basketball game in Chicago, Saturday, Dec. 5, 2015. (AP Photo/Andrew A. Nelles)

Chicago, IL - December 5, 2015: Dr. Jerry Klein, center, works with staff to evaluate a canine patient at the Chicago Veterinary Emergency and Specialty Center in Chicago, Ill., on Saturday, December 5, 2015. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 5, 2015: Dr. Jerry Klein speaks with staff in the emergency room at the Chicago Veterinary Emergency and Specialty Center in Chicago, Ill., on Saturday, December 5, 2015. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 5, 2015: Dr. Jerry Klein, center, speaks with staff in the emergency room at the Chicago Veterinary Emergency and Specialty Center in Chicago, Ill., on Saturday, December 5, 2015. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 5, 2015: Dr. Jerry Klein checks out Delila, a 13-year-old beagle, with veterinary technician Molly Duignan, in the emergency room at the Chicago Veterinary Emergency and Specialty Center in Chicago, Ill., on Saturday, December 5, 2015. CREDIT: Andrew A. Nelles for The New York Times

Chicago, IL - December 5, 2015: Dr. Jerry Klein checks on Rocco, a 7-month-old french bulldog, in the emergency room at the Chicago Veterinary Emergency and Specialty Center in Chicago, Ill., on Saturday, December 5, 2015. CREDIT: Andrew A. Nelles for The New York Times