Lucifer & Chloe are leaving the church with Father Lawrence when they are fired upon by a drive-by shooter in episode 1x09 "A Priest Walks Into a Bar".
Source: YVRShoots — Twitter
Johnny Frost reports from the vaccination center and sneaks to the front of the line to get his shot in episode 3x13 "Looking for Mr. Goodbrain, Part 2".
From episode 4x17 "Everything in Its Right Place".
Jordan tells a version of his story at a magical support group in New Orleans in hopes of drawing the attention of someone associated with the strange tattoo in episode 2x11 "Dance Like No One Is Witching".
Kate finds Mary dying after being drained by Nocturna and Alice offers her help to save her in episode 1x13 "Drink Me".