A Saturday morning wedding at a church in a small New Hampshire town came to a bloody and abrupt halt when a gunman barged in and opened fire, wounding a bishop and the bride before he was “gang tackled,” the authorities said.

The shooting appeared to be revenge for the killing last week of another clergyman in the same congregation, New England Pentecostal Ministries church in Pelham, N.H., about 30 miles north of Boston.

The gunman on Saturday was identified by law enforcement officials as Dale Holloway, 37, who, according to obituary information, is the stepson of Luis Garcia, an ordained minister who was fatally shot at his Londonderry, N.H., home on Oct. 1.

Image Dale Holloway Credit... Pelham Police Department

Brandon Castiglione, 24, was charged with second-degree murder in the death of Mr. Garcia, for whom a memorial service had been scheduled at the church after Saturday’s wedding.