The Rev. William B. Schooler is pictured in January 2011 photo in Dayton, Ohio. Schooler, 70, was fatallly shot Sunday, Feb. 28, 2016, while in his office at St. Peter's Missionary Baptist Church in Dayton, Dayton police said. His brother, Daniel Gregory Schooler, 68, was arrested at the scene and taken to the Montgomery County jail. He faces a murder charge on Monday, said Sgt. Richard Blommel.  ohdayap

The Rev. William B. Schooler is pictured in January 2011 photo in Dayton, Ohio. Schooler, 70, was fatallly shot Sunday, Feb. 28, 2016, while in his office at St. Peter’s Missionary Baptist Church in Dayton, Dayton police said. His brother, Daniel Gregory Schooler, 68, was arrested at the scene and taken to the Montgomery County jail. He faces a murder charge on Monday, said Sgt. Richard Blommel. ohdayap

DAYTON, Ohio (AP) — An Ohio pastor with deep roots in the Dayton community was shot and killed at his church Sunday, and police say they expect to charge his brother in the slaying on Monday.

The Rev. William B. Schooler, 70, was shot around 12:30 p.m. while in his office at St. Peter’s Missionary Baptist Church, Dayton police said.

His brother, Daniel Gregory Schooler, 68, was arrested at the scene and taken to the Montgomery County jail. He faces a murder charge on Monday, said Sgt. Richard Blommel.

Police said they did not know Sunday what led to the shooting but said the pastor was the only intended victim.

Besides being pastor at the church, William Schooler was a past interim president of the Dayton school board and current president of the local Baptist ministers union.

Daniel Gregory Schooler is shown in a photo provided by the Montgomery County Jail in Dayton, Ohio. Dayton police say 70-year-old William B. Schooler was shot around 12:30 p.m. Sunday, Feb. 28, 2016, by his brother Daniel while in his office at St. Peter’s Missionary Baptist Church in Dayton. Police say Daniel Schooler will be charged with murder on Monday. (Montgomery County Jail via AP)

He was a teacher in the Dayton school district in the 1970s and served as a principal in the Jefferson Township district for nearly two decades, according to the Dayton Daily News. He also held other positons with community organizations and local governments, including serving as a certified city of Dayton mediator.

“He had deep roots in the community,” a friend, Ronnie Moreland, told the newspaper. “He was a beloved leader. It’s hard to put into words what has happened.”

Dayton City Commissioner Joey Williams told the Daily News he had discussed with Schooler ways to reduce violence in the community.

“For him to be a victim of violence is just extremely saddening,” Williams said.

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This story has been corrected to show the pastor was shot while in his office, not in the pulpit.