Serial killer-obsessed woman sentenced to 23 years for murder of on-off boyfriend as he slept

 Serial killer-obsessed woman sentenced to 23 years for murder of on-off boyfriend as he slept

A true crime-obsessed woman has been jailed for life after being found guilty of stabbing her on-off boyfriend to death as he slept.
Shaye Groves, 27, slit the throat of Frankie Fitzgerald, 25, befo…