Photo taken on Feb. 9, 2020 shows a bloody footprint at the parking lot of an apartment complex where a shooting took place in Chinatown of Chicago, the United States. One person was arrested after two men were shot to death during a robbery that happened early Sunday morning in Chinatown on the south side of Chicago. (Xinhua/Wang Ping)

Photo taken on Feb. 9, 2020 shows the building of Chicago Police Department near Chinatown of Chicago, the United States. One person was arrested after two men were shot to death during a robbery that happened early Sunday morning in Chinatown on the south side of Chicago. (Xinhua/Wang Ping)

Photo taken on Feb. 9, 2020 shows the apartment complex where a shooting took place in Chinatown of Chicago, the United States. One person was arrested after two men were shot to death during a robbery that happened early Sunday morning in Chinatown on the south side of Chicago. (Xinhua/Wang Ping)

Photo taken on Feb. 9, 2020 shows the apartment complex where a shooting took place in Chinatown of Chicago, the United States. One person was arrested after two men were shot to death during a robbery that happened early Sunday morning in Chinatown on the south side of Chicago. (Xinhua/Wang Ping)