(CNN) -- Monsignor William Lynn, the highest-ranking cleric accused of imperiling children by helping cover up sexual abuse, was found guilty Friday of one count of child endangerment. He was found not guilty on a second count of endangerment and a conspiracy charge to protect a priest accused of abuse. The jury was unable to bring a verdict against his co-defendant, the Rev. James Brennan, who was charged with attempted rape of a 14-year-old altar boy and endangering the welfare of a child. Lynn was taken into custody after Friday's verdict, when the judge revoked his bail. His lawyer, Jeffrey Lindy, derided the decision not to let his client remain free on bond prior to sentencing, calling it "an unspeakable miscarriage of justice (for) a 61-year-old man with no prior record and long established ties to the community."
@highlight
NEW: Lynn is "extremely upset;" his lawyer says he should be free on bond before sentencing
@highlight
Philadelphia's district attorney hails the verdict as "historic," says others could be charged
@highlight
The monsignor is found guilty of one count of child endangerment and acquitted on two others
@highlight
The jury was unable to bring a verdict against his co-defendant, the Rev. James Brennan
"Because of the @placeholder verdict, bishops and church officials are now accountable.