The suspect was sitting in a pew at St. Peters Missionary Baptist in Dayton, Ohio, when he suddenly started following 70 year old pastor William Schooler.
As the choir was signing, witnesses say they heard two shots.
According to WTN, the church was thrown into chaos and everyone was seen running out of the doors. 
There were said to be 20 people inside at the time.
The suspect was taken into custody after the shooting.
Details of those involved have not yet been released.  
Via Daily Mail.