When Annie falls from the police stations window from really high up, when she hits the ground she hits the dirt, as show by a lot of dirt flying into the air as she hits. But when the police officer look out the window she jumped from, she is seen laying on concrete, a few yards away from the ground the side angle showed her hitting. Looking closely when she first hits her body "bounces" in the air so it could easily have hit the dirt and landed on the concrete.
When Richie Ryan is fighting Annie Devlin, she forces Richie over the railing to fall to the rocks below. There is no sword in Richie's hand before the fall but as he rolls on the rock below he does have a sword in his hand. Also, as he's rolling, part of Annie's sword can be seen on the right hand side of the screen, although Annie hasn't jumped over the railing to follow him yet.
Why would Macleod train Ritche to use a Katana, then provide him with a clam shell rapier as his personal weapon? The fighting styles of the two weapons are drastically different, and an experienced teacher and swordsman like Macleod would know better.
Both Mac & Ritchie sensed the presence of Annie Devlin, another immortal. But Annie did not sense the approach of two immortals to thwart her assassinating the ambassador.