A Brooklyn personal trainer was charged with aggravated harassment Monday for threatening an NYPD officer just one day after two cops were gunned down in Bed-Stuy.

Clifton Jean-Pierre sent a text message to NYPD drug cop Katrina Weekes and eight others that read, “FOR EVERY ONE THEY KILL, WE KILL TWO,” court papers charge.

Jean-Pierre, 36, met Weekes months before at Blink Fitness in Flatbush, where he had recruited her as a client, law-enforcement sources said. He was being held in lieu of $50,000 bail.