Juliana Peres Magalhaes, 25, was sentenced to 10 years behind bars for shooting and killing 39-year-old Joseph Ryan on Feb. 24, 2023, Fairfax County Commonwealth’s Attorney Steve Descano announced Friday, Feb. 13.
Magalhaes was working as an au pair for Brendan and Christine Banfield in Reston when she began a romantic affair with Brendan, prosecutors said…