Richard Giacovas

Those three victims, all of them seniors, are recovering after that wild morning underground that sent strap hangers into a mass panic.

It all ended...

With that man armed with a machete being shot dead by police.

All of it unfolding inside busy Grand Central Terminal.

Cops say 44-year-old Anthony Griffin boarded a Manhattan-bound 7 train from Queens.

When he arrived on the platform, cops say he took out his machete and slashed an 84-year-old man.

Then he went upstairs to the 456 platform and attacked again.

This time shouting, Lucifer.

over and over again as he slashed a 65-year-old man and a 70-year-old woman.

When cops arrived, Police Commissioner Jessica Tisch says they repeatedly asked Griffin to drop his machete.