A memorial service was held at Oslo Cathedral on Sunday for the victims of this weekend’s deadly shooting at an LGBTQ nightclub and bar. “We are gathered here in grief, desperation and helplessness,” said deacon Anne-May Grasass during the Mass, the Verdens Gang newspaper reported. The attack, in which an assailant fired a weapon at multiple locations including a popular gay bar on Saturday morning, left two people dead and over 20 others injured. Norway’s PST intelligence service has deemed the shooting an Islamist terrorist attack. Grasnass said the attack had also been an assault on the div…