will work with a broad coalition to dismantle this network of death. >> reporter: what we will see in the coming days is a combination of these larger planned air strikes and targets of opportunity, meaning if the pilots spot an isis target, a convoy or training camp, they will take it out. martha raddatz, abc news, the persian gulf. breaking news in the search for missing university of virginia student hannah graham. a man charged with abducting her is now behind bars. taken into custody more than 1,000 miles away on a texas beach. this morning the whereabouts of the 18-year-old sophomore still a mystery. abc's carolyn costello with the latest. >> jesse matthew is in custody in galveston, texas. >> we don't at present have any information as to what might have prompted mr. matthew to head to that part of the country. certainly that's something that we'll consider as we go through our investigative process. that might take several days. >> it's a positive close to this chapter of this very important case.