somebody who knows this individual. doesn't mean they're friend. but there may be already a path that this person knows, that this jessica has already been taken. he has been following her for a while. that's definitely a possibility here. and i just worry that perhaps because she -- she has been this person who is pretty well known in the community that somebody may have been watching her and planning for this. >> dr. judy ho. appreciate it. >> when we come right back here on cnn. you have seen the protests across the country. tonight. mother whu mothers who lost their sons in police shootings tell their emotionally stories. what they're doing to save other mothers from the same nightmare. the greatest t rex fossil found. dinosaur hunter. choosing our cnn person of the year. tweet your vote using #cnntonight. find out whuch o've it is at thd of our show.