Sr. Angela Miller, a member of the Sisters, Servants of the Immaculate Heart of Mary, is believed to have been killed by her nephew on or before he set fire April 28 to the nun's home in West Scranton, Pennsylvania, authorities said.
Rosemary Smith, Miller's sister and the mother of Alan Smith, was shot in the head and killed by her son before he set the fire, according to a May 1 report in The Times-Tribune in Scranton. Alan Smith died in the blaze, and officials ruled the death a suicide.
The Smiths lived on one side of a duplex home, while Miller lived on the other, the newspaper reported.
Investigators searched the home for Miller's body, but failed to find it. They suspect Alan Smith killed Miller sometime before he set the fire.
A search for her body was continuing May 2 after police identified what they believe could be blood in the trunk of Rosemary Smith's car, The Times-Tribune reported.
Events unfolded as police arrived at the home to serve an emergency protection-from-abuse order and were met with a shotgun blast fired by Alan Smith after he set the fire, the newspaper reported.
Miller served six years in the Archdiocese of Baltimore, and associates recalled her as a fun-loving person.
Deacon Paul Mann, pastoral associate at St. Clare of Assisi Parish in Essex, Maryland, worked with Miller, a popular middle-school teacher at St. Rita School in Dundalk, Maryland, from 1983 to 1986. She was also the co-moderator of the parish's high school youth group.
"The kids loved her because she was the cool nun, the fun nun," said Mann, who worked with the youth group with his wife, Irene. "Most religious have the air of mystique about them. She would just be real."
Fr. C. Lou Martin, pastor of Christ the King Parish in Glen Burnie, Maryland, was assigned to St. Rita Church when Miller served there and remembered her as "the kind of person who would reach out to people on the fringe."
"She was very energetic, just a go-get-it kind of person," Martin said. "She could witness to her vocation."
The Manns said Miller was devoted to her family.
"She asked permission not to live in a convent [in Scranton] so she could take care of her parents," Irene Mann said. "She stayed there after they died."
In a May 1 statement, Sr. Ellen Maroney, president of the Sisters, Servants of the Immaculate Heart of Mary, said the community was "deeply grieved at the horrific and heartbreaking situation which took the lives of our Sister Angela Miller; her sister, Rose Smith, our employee at the IHM Center for 17 years; and her son, Alan."
Maroney noted that for more than 15 years, the sisters have worked to raise awareness of domestic violence.
"We unite with all who refuse to be numbed by tragedy," she said, "but instead use their grief energy to work for the fullness of compassion and justice."