>> >> diaz: a doorbell camera in chicago captured this act of kindness. a girl left this surprise, a sign of solidarity at a home flying a ukrainian flag. the artwork of the flag includes a small heart. the homeowners, who are ukrainian american, don't know who the little girl is, just her name, kaia. finally tonight, chicago is one of several american cities with strong ties to ukraine. that includes a resident unexpectedly caught up in the conflict. >> we finally made it. >> we finally made it to krakow. i can't believe it. i'm overwhelmed. >> diaz: olga tsoi documented her escape from ukraine with heo mother so others would understand. >> spending a second or two in a situation where you hear bombs, that's going to change everything. you can be watching videos and pictures and reading the