Victims’ families and others affected by crimes that resulted in federal death row convictions are sharing a range of emotions, from relief to anger, after President Joe Biden commuted dozens of the sentences.

Federal investigators say an air traffic’s controller’s faulty assumption nearly caused a runway collision at a Texas airport last year.

While the cause of a deadly collision between two vintage military aircraft at a Dallas air show to commemorate Veterans Day remains unknown, experts say the accident will likely renew discussion over whether additional safety rules are needed for such events.

Transportation investigators are trying to determine why two historic military planes were seemingly in the same place at the same time just before they collided at a Dallas air show, killing six people.

Doctors charged with determining the cause of an individual’s death try to learn all they can about the person’s life.