6-year-old Keisha suffered head injuries, was left to die and then her body was stuffed into a suitcase and set on fire - by her own mother

A maximum of 16 years is too low a sentence for someone who killed their child - that's the resounding emotion in many of the people associated with this case.

From the police detectives who put in hours of unblinking hard work to solve it, to Kristi and Keisha's neighbors, friends and family - to have knocked your daughter unconscious with savage blows to the head, denied her medical help till she died; and then dragged her 5-day-old rotting corpse in a suitcase so that it could be set on fire is simply the worst kind of evil imaginable.

And it wasn't just this, it was years of torture that this little girl suffered at the hands of her mother - from a shoulder bite that she had to be hospitalized for to many other blows that broke her bone - the story of Keisha Weippart is a sad one.

But is Kristi the only mother to have killed her children? Hardly; sometimes a mental illness, sometimes stress and sometime just sheer callousness has caused many a mother to turn killer as apparent in these stories, from 2013 itself. In all these stories, lies a chilling testament of the basal nature of human beings - when in stress, instead of protecting the children, some mothers simply turn killers.

Fiona Anderson, pregnant with her 4th child, killed her 3 children and then jumped to her own death in Lowestoft, England

A chilling death note that stated the children were safe, cuddled in bed and sleeping peacefully, followed by a mother's promise to keep them safe was belied by the fact that the three little ones were dead. The heavily pregnant mother jumped soon after from a 40-foot multi-story car park and died due to severe head injuries. Her only wish was to be buried with her babies something the father, Craig McLelland separated from Fiona at the time, is not in favor of.

Katherine Hooper jumped to death with her 5-year-old in Devon, England: the body of her younger son was found at home, having been suffocated

Apparently after being assaulted by her ex-partner, she was upset. But as it is in such cases, neither friends nor family expected to her to take such a drastic step. The ex-partner is now being charged for assault

Miranda Hebble, Perth, Australia: claims to have put her sons in the shower and passed out - she woke up 10 hours later to find them dead

Neurologists have examined Miranda and do find any cause to have caused her to "pass out" - but doctors may believe she may have fallen into a deep sleep. This anemic mother begged the paramedics to kill her when she called for assistance after discovering her sons not breathing. While the inquest is still on, doctors find many facts to be a concerning, including the 10-hour sleep just meters away from the bathroom, he older son died over a period of time and must have made some noise and the fact that death by drowning could not be established.

Canada's Most Hated Mother deported to her homeland, Australia

Allyson McConnell, who was convicted for killing her two children in Alberta, Canada by drowning them in the bath tub has been deported to her homeland, Australia after having served two thirds of her sentence in a psychiatric facility. She still calls herself a loving mother is not ruling out having children in the future. At the time of the murder, her husband and she were undergoing an acrimonious divorce and custody battle.

Australia