This all seems a bit strange to me. Firstly, they had all their children by IVF - so, if they so desperately wanted them, why would they kill one of them? Secondly, how come the so-called forensic evidence wasn't found sooner? If there's a crime scene, then surely it should have been taped off, properly searched, forensically examined, on the day it happened, not weeks later? They're doctors - I'm not saying they're innocent because of their profession (look at Harold Shipman), but their Hypocratic oath should kick in here. There's something weird going on and I think the Portugese police are clutching at straws.