A Microsoft employee was walking home from work when he was stabbed more than a dozen times by another worker, police said.

The 26-year-old engineer was waiting at a crosswalk in front of the Microsoft building on Feb 22 in Redmond, the Redmond Police Department said in a probable cause statement.

The worker told police he heard someone walking toward him and shouting as he waited for the crosswalk signal to change.

Then as he turned around, he was stabbed multiple times, he told police.

He fell to the ground in the stabbing, and his fall sent an alert to his wife through his Apple Watch, the woman told police.

A witness yelled at the man to stop stabbing, and he ran off, police said.

The injured man suffered a fractured skull, brain bleed and 13 stab wounds to his hand, arm, chest, lower back, neck and head in the attack, police said.

Trail of blood helps police find suspect

Residents of a nearby apartment reported to police they saw a trail of blood in their apartment complex, and they followed it to a third-floor hallway.

Police went to the apartment and reviewed the surveillance footage. They said they spotted a man wearing a black puffy coat, a maroon shirt with a “yellow sunburst design,” dark jeans and dark gloves.

Investigators were able to track the man to his unit through the key fob he used to get into the apartment, police said.

They identified him as 27-year-old Joseph Cantrell. He also worked at Microsoft but in a different building and work group, police said.

The injured man told police he didn’t know Cantrell.

Police said they also reviewed surveillance camera footage from Microsoft, and the suspect in the video appeared to be wearing clothing similar to what Cantrell was seen wearing in the apartment.

Once a search warrant was approved, police entered Cantrell’s apartment and arrested him.

He faces a second-degree attempted murder charge. Prosecutors have argued to set his bail at US$2mil .

He will be arraigned on March 9.

 - TNS