Mark 'Bruni' Brown, president of the Mad Dogs biker gang in Scotland, remains in hospital with serious injuries after a targeted attack was carried out by armed individuals on the M74 motorway. Brown suffered serious injuries as a result, but has vowed to fight on in a social media post that has since been deleted. A welcome to Scotland signBrown said this as part of the social media update:Article continues below ADVERTISEMENTArticle continues below ADVERTISEMENT“A bit of background to what has been going on with the dogs. Bruni and other members of the gang were believed to be travelling back from a weekend away in England, when the attack was carried out. According to Police Scotland, members of the public that witnessed the attack were left shaken, in what appears to have been a calculated and targeted attack.