The scene of a fatal train and tractor trailer accident in the 1000 Block of Pittsburgh St. on on Thursday, August 20, 2020. (Andrew Rush/Post-Gazette)The scene of a fatal train and tractor trailer accident in the 1000 Block of Pittsburgh St. on on Thursday, August 20, 2020. (Andrew Rush/Post-Gazette)The scene of a fatal train and tractor trailer accident in the 1000 Block of Pittsburgh St. on on Thursday, August 20, 2020. (Andrew Rush/Post-Gazette)The scene of a fatal train and tractor trailer accident in the 1000 Block of Pittsburgh St. on on Thursday, August 20, 2020. (Andrew Rush/Post-Gazette)The engine of a Norfolk Southern train that was involved in a fatal accident with a tractor trailer in the 1000 Block of Pittsburgh St. on Thursday, August 20, 2020 in Cheswick. (Andrew Rush/Post-Gazette)