Brother allegedly tosses 4-year-old boy from Brooklyn building, killing him: police

BROOKLYN — A man was taken into custody after his 4-year-old brother was found dead outside a Brooklyn apartment early Saturday.

At about 3:30 a.m., Shimron Smith was found unconscious and unresponsive in the courtyard of an apartment building along Nostrand Avenue in the 2400 block in the neighborhood bordering Midwood and Flatlands, police said.

He was pronounced dead at the scene, according to police.

His 20-year-old brother, Shawn Smith, has been taken into custody for questioning, said police.

Police believe the child's older brother tossed him from the roof or from the family's sixth-floor apartment.Neighbors say the older brother has a history of mental illness.

One building resident tells the Daily News that the brother seemed to be "a little off." Other neighbors recall seeing the alleged killer aimlessly walking up and down the building steps.

The Associated Press contributed to this report.