This movie is about a dad that has a business trip to Africa and he takes his two kids

Not sure if this is what you're looking for, but try Prey (http://www.bloggernews.net/14464). If it's not, can you give any more information?

Looking for a foregin filn about a serial killer (I think it is German) who kills 5 kids and when he his caught he flees the building by going across the tops and out the window where they catch him and since he fell from such a high place ends up in a wheelchair and they bring in a small town cop to question him? It has a one word title? Begins with an A