People look at a memorial at Borispil international airport outside in Kyiv, Ukraine, Thursday, Jan. 9, 2020, for the flight crew members of the Ukrainian 737-800 plane that crashed on the outskirts of Tehran. The crew of a Ukrainian jetliner that crashed in Iran, killing all 176 people on board, never made a radio call for help and was trying to turn back for the airport when the burning plane went down, an initial Iranian investigative report said Thursday. (AP Photo/Efrem Lukatsky)