sentences:  The attack had been known in advance by security forces due to a tip-off from informants within Rathcoole; Adams and his co-passengers had survived in part because Royal Ulster Constabulary officers, acting on the informants' information, had replaced much of the ammunition in the UDA's Rathcoole weapons dump with low-velocity bullets.Gregg was sentenced to 18 years in prison; however, he only served nine years before he was released in 1993.When asked by the BBC in prison if he regretted anything about the shooting, his reply was, "Only that I didn't succeed."