Waste no pity on Simon Mann. Those who take up the life of a mercenary are pushing luck to its limits; their lives end either in a hail of AK47 rounds on some jungle floor or as sad drunks weltering in self pity as they prop up some seedy bar. Mann has shown little conscience for all those he has killed over the years not for Queen and country or for ideology but for money. A mercenary is just a hit-man in a parody of uniform.
As for Mark Thatcher, I've met him and can confirm he really is the vile and odious creature he's been painted. My only hope is that if he does face extradition to answer for his part in Mann's attempted coup that his mother is not alive to see it.