A Michigan man was arrested for planning to bomb The Satanic Temple headquarters in Salem, Massachusetts, police said.

Luke Isaac Terpstra, 30, of Grant, Michigan was arrested on Jan. 2 by Grant police, according to a Jan. 12 news release from the Salem Police Department. Terpstra is charged with possession of bombs with unlawful intent.

Michigan law enforcement were tipped off about Terpstra’s plan by his mother, WZZM reported citing court documents.