Aggravated Assault in Florida

in general how credible is a witnessness that has been impaired by drinking and has a motive to lie due to malice they have towards another group of people? and had not informed the police of a alleged assault that occured till the next day, they claimed a shotgun was used to assault them however no weapon was ever recovered and no arrest were ever made till 10-12 days later, some arent showing for depositions. there is group of 4-5 friends saying there was a weapon used and a group of 11-12 people saying they never saw a weapon ever displayed at any point in the incident that occoured at a party. also if a group was agreeible to walk outside to fight with another group is that considered consensual combat? basicaly one clique saying the other clique assaulted them and claims of being hit ( but no pictures of any injuries are available ). is a testimony cliaming there was a weapon strong enough to hold up at trial? and what about " being a principal to aggrevated assault " I.E - " supplying the weapon "

there has to be reasonable doubt in this situation from at least what is given above right????

They need to be asking these questions to there lawyers. They do have to prove there case beyond a resonable doubt. It sounds like there a chance the case can be dismissed,they should follow the advice of there lawyers.