who was spotted shortly after 7:30 p.m.

Darkness began to fall as the conversation continued. But after nearly 60 minutes, relieved officers were able to convince the troubled woman to retreat to safety.

 Don't do it. Don't do it, please,  one officer pleaded once he was close enough to grab her behind from the waist.  I got you. You're OK. Everything's going to be OK. You're not in trouble. 

Tisch was full of praise.

 The care, courage, and compassion these officers showed was just extraordinary,  she wrote.  May God bless them.