"Once we saw that, we felt comfortable enough to send some officer tactical equipment to grab him and pull him away from the boat," Deveau said.
The Boston Police Department got the last word on Twitter: "CAPTURED!!! The hunt is over. The search is done. The terror is over. And justice has won. Suspect in custody."
A few minutes later, a more somber tweet followed as Boston heaved a sigh of relief:
"In our time of rejoicing, let us not forget the families of Martin Richard, Lingzi Ly, Krystle Campbell and Officer Sean Collier."