A man at the Mall of American in Minnesota apparently threw a 5-year-old boy over the third floor railing, and so far no one knows why.
WCCO-TV in Minnesota reported a witness heard the boy's mother shouting "Everybody pray, everybody pray".
'She was screaming "Everyone pray, everyone pray. Oh my God, my baby, someone threw him over the edge".
The suspect- 24-year old Emmanuel Deshawn Aranda tried to run away but was quickly arrested. He is expected to be charged with attempted homicide.
Shortly after the incident, police arrested a 24-year-old man inside the mall, one of the state's leading tourist attractions, after he had fled the scene, Potts said.
Mr Potts continued: "At this time we do not believe that there is a relationship between the child or the family of the child".
Authorities described the injuries as life-threatening but he is in stable condition at Children's Hospital Minneapolis.
Aranda was chased down inside the mall and was taken into custody.
On Friday, the boy "was enjoying a day at the Mall of America with his mom and friend ... when a stranger maliciously grabbed him and threw him over the third-floor balcony for no apparent reason".
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Potts said Bloomington police had not had any contact with the suspect since 2015, until Friday's incident.
In the meantime, please send up a prayer for the little boy. Our immediate and only concern is for the wellbeing of the family and the child, as well as for any individuals who may have witnessed the incident.
Witnesses told law enforcement that they saw Emmanuel Deshawn Aranda, of Bloomington, Minn., shove or hurl the young child from the third interior level on the Bloomington Mall side to its first on Friday morning.
"We have counselling services available for anyone who may need assistance".
Then in October 2015, Aranda returned to the Mall of America again - in violation of his no-trespass order - and harassed and assaulted a woman inside a restaurant there, records show.
Police are still investigating what the motive was as well.
Aranda also was accused of walking into a mall store and sweeping his hand across a display table, breaking glasses. He was charged in two previous incidents at the mall in 2015.