The Lord Provost initially found the confession implausible .
The Lord Provost initially took no action , but eventually Weir and his spinster sister , Jean Weir ( known to her friends as ' Grizel ' ) , were taken to the Edinburgh Tolbooth for interrogation .
The Lord Provost initially found the confession implausible and took no action , but eventually Weir and his spinster sister , Jean Weir ( known to her friends as ' Grizel ' ) , were taken to the Edinburgh Tolbooth for interrogation .