An American woman who traveled to the UK to try to assassinate her lover’s business rivals — only for the gun to jam on her — was sentenced Thursday to 30 years in prison. Loved-up Aimee Betro, 45, traveled from Wisconsin for the twisted murder plot nearly six years ago in Birmingham, England, to please Mohammed Nazir, a British man she fell for on a dating app. Surveillance footage caught Betro as she hid behind a full Islamic niqab face covering while waiting in a car — then stepped out to try to shoot her main target’s son, Sikander Ali,...