WEST FELICIANA PARISH – Two ankle-monitor companies, the owner of one and an employee of the other were charged Thursday with negligent homicide, almost a year after a man who wore a monitor killed his estranged wife before turning the gun on himself in St. Francisville. It’s an indictment that could be the first of its kind in Louisiana, according to Sam D’Aquilla, district attorney for the 20th Judicial District, who called the ankle-monitoring system “worthless.&rdquo