F is for First Baptist Church, Sutherland TX

Sunday, Nov. 5, 2017:

11 AM.  A man parked close to the door of the church and shot two people outside.  He then went into the church and methodically shot at people in the pews.  He used a semi automatic rifle and a handgun. According to Wikipedia,   the shooter was prohibited by law from purchasing or possessing firearms and ammunition due to a domestic violence conviction in a court-martial while in the United States Air Force. The Air Force failed to record the conviction in the Federal Bureau of Investigation (FBI) National Crime Information Center database, which is used by the National Instant Check System to flag prohibited purchases. The error prompted the Air Force to begin a review.

26 people were killed and 20 injured.
From CNN's web site, those killed are:

Sara and Dennis Johnson
Lula White
Annabelle Pomeroy
Haley Krueger
Bryan Holcombe, guest pastor that day
Karla Holcombe
Danny Holcombe
Noah Holcombe
Crystal Holcombe (and unborn child)
Emily Hill
Megan Hill
Greg Hill
Tara Elyse McNulty
Richard and Theresa Rodriguez
Robert and Shani Corrigan
Joann Ward, and her children Brooke Ward and Emily Garza
Karen and Robert Scott Marshall
Peggy Lynn Warden
Keith Allen Braden

A chase ensued after the shooting and the shooter ended up killing himself.

Viridian