John O’Keefe died from falling backwards and hitting his head on frozen ground, according to a Yale-educated brain surgeon ...

Brain surgeon Dr. Aizik Wolf tells jurors what exactly he believes killed Boston police officer John O'Keefe.

Miami neurosurgeon Dr. Aizik L. Wolf told jurors a fall backward was “the only way” O’Keefe could have sustained his fatal ...

Baylor College of Medicine dermatology professor Dr. John Wolf warned that the combination of cold outside air, with warmer inside air, can dry out the skin and lead to “winter itch.” “ ...