For the second time in two weeks, there’s been a vicious, random attack in Martin County, in this case by a 19-year-old man who attacked two people in their Stuart home — exhibiting “extreme strength and a high tolerance to pain” after smashing through a glass window early Sunday morning. But unlike the first incident on Aug. 15, in which authorities say Austin Harrouff, also 19, stabbed a couple to death in their garage, biting one victim severely, the Martin County Sheriff’s Office has the illicit drugs the alleged intruder took along with a friend. The friend of the suspect...