Four Louisiana teens who were charged as adults in March’s deadly carjacking pleaded not guilty on Wednesday to second-degree murder. On March 21, John Honore, 17, Briniyah Baker, 16, Lenyra Theophile, 15, and Mar’Qel Curtis, 15, allegedly assaulted Linda Frickey, 73, and pulled her out of her SUV before dragging her alongside her vehicle for …