(CNN) - The safe return of two children over the weekend comes as mixed news to the families.
The Amber Alerts on opposite sides of the country end with the two children still alive, but the crimes that led to their disappearances have left five other people dead.
Police arrested two men in the disappearance of 2-year-old Isaiah Perez on Sunday, but the boy wasn't with either man.
Instead, police say a patrol officer found the toddler wandering the street in Providence, RI.
Perez appeared to be unharmed but was taken to a hospital to be checked out. His family has been notified and went to the hospital to be with him.
However, his mother and another person were found dead at the house where Perez was kidnapped.
Police have not released a motive, and they are unsure how Perez came to be wandering the streets miles away from his home.
On the other side of the country, authorities may never learn the motivations of 42-year-old James DiMaggio.
An FBI agent shot and killed the California Amber Alert suspect Saturday after horseback riders stumbled across him in the Idaho wilderness.
"For us to be there at the precise time to interact with them - it's one chance in a trillion," said Ada County, ID, resident Christa John.
They had a short conversation with DiMaggio and 16-year-old Hannah Anderson last Wednesday, not knowing about the Amber Alert but recognizing that the two campers were very out of place.
"These people did not want to talk to us whatsoever," said Mark John, also an Ada County resident.
"She didn't make any comment until we started riding away, and then she says, 'It looks like we're all in trouble now.'"
Hannah reunites with her father, a week after her mother and brother were found dead in a family friend's burned-down home.
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