The officials said an unidentified person who knew the family had requested a welfare check after they hadn't heard from the couple and their daughter in a while.
The woman's mother said the suspect was her daughter's ex-boyfriend.
"He really is the one that ... I believe saved his sister's either life or from something seriously bad happening to her ... ," Lt. John Grimshaw said.
"It's hard, you know, not knowing the full story is hard ... We pray that someone didn't intentionally hurt this baby," KCPD Sgt. Jake Becchina said.
A female student managed to click a picture of the suspect, which helped investigators locate him and take him into custody.
The victim informed the authorities Bell pushed her into the U-Haul truck and threatened to kill her if she didn't comply with his demands.
The woman's death appears to be an accident, according to investigators.
Paris Mayo, now 19, allegedly murdered her baby boy to prevent the discovery of her pregnancy and his birth.
The 17-year-old suspect had fled the scene after pulling the trigger on his brother but soon turned himself in.
The 19-year-old went to the hospital complaining about back pains. Doctors confirmed she was pregnant before she locked herself in a bathroom and gave birth.
"I come running over, and her immediate action was, 'He set me on fire,'" said a neighbor who saw the woman laying in the grass and called 911.
Richard Wershe Jr. got into an argument with his girlfriend of four months and allegedly attacked her.
After the mother passed out from the strangling, her boyfriend attacked her children with a broom handle before one of them stabbed him multiple times.
The 32-year-old man has been arrested and charged with aggravated child abuse.
The bus went off-road and plunged down several feet, crashing into a coffee plantation and hitting several beehives.
"This is a large, multi-state investigation, and is ongoing, but a suspect is in custody and is not a threat to the public," the sheriff's office said.
The American expat, who thought his girlfriend was single, reportedly got into a fight with the woman after finding out she had a husband and a child.
The children were locked for as many as six weeks at a time inside the room, covered in human feces and urine.
When the woman tried to end the relationship, "this man chose a shocking act of violence that ended" her life, District Attorney Kevin Hayden said.
The child survived two frigid nights in the wilderness. He covered himself with branches to stay warm and ate snow to keep himself hydrated.
"When I came back out, the baby was holding on the ledge hanging. So, I stood right underneath him just in case," said the woman who caught the child.
A judge has recommended that the man's sentence be served in a medical facility.
The suspect has been apprehended and charged with culpable homicide not amounting to murder.
Deputies learned that the son was not supposed to be in the house because his mother filed a no-contact order against him weeks before she was found dead.
The now-42-year-old former teacher was handed a sentence of more than four years in jail.
The homeowner said he saw shadows outside his home and opened fire as he saw people running away.
The group reportedly spent about 90 minutes hiding inside the bathroom closet while the gunman unleashed a volley of gunshots and claimed a total of eight victims.
The man, who was the last person to watch the baby before her injuries, said he believed someone or some spirit was trying to inflict suffering on his family.
The father told cops he is sure his baby was initially alive because she was blinking and moving her mouth before her head was allegedly ripped off.
An 18-year-old suspect was arrested in connection with the 62-year-old man's death.