Authorities have arrested an 18-year-old suspect in the kidnapping and murder of a toddler in Dallas, Texas. The body of 4-year-old Cash Gernon was discovered by a jogger on a residential street just before 7 a.m. on Saturday morning. “I see something laying in the road and my initial thought was that it was a dog. The closer I get to it, I can tell it’s a human ’cause I see a hand and I see...