Ms Lagwinowicz is said to have joined Mr Dmytryszyn in dumping Miss Wells-Burr's body in her red Ford Focus before setting fire to the car at about 06:00.
Yoshito Okubo was guilty of a bad miss early on before Tamada showed his strike partner the way, sliding in to fire home a right-wing cross from Makoto Hasebe in the 21st minute.
Miss Wells-Burr, who graduated from Bath Spa University with a first-class degree, was discovered by fire crews in her red Ford Focus in a field in Ashill.