The man behind the threatening tweet spoke to the Daily News by phone, without revealing his name. He said he lives in Florida and follows OWS protests online but has never attended one.



He said the tweet about killing cops was a jest.



"It's not like I meant anything of it," he said. "Who takes anything like that seriously? I'm in Florida, what am I going to do?"



Police swept in the park late Saturday and early Sunday, arresting 73 protesters. The demonstrators, who were booted out of the park Nov. 15, had attempted to stay overnight Saturday.



"We had planned on being there for 24 hours," said protester Aaron Black, 38, of Brooklyn. "They were using their clubs and beating the crap out of people."



Cops are also pursuing phone threats to two cops and their families made Saturday, officials said.



The activists released video Sunday showing protester Cecily McMillan, 23, suffering a seizure after her arrest. In a counter-video released by police, McMillan is seen elbowing her arresting officer in the face.



She was treated at New York Downtown Hospital and released into police custody, cops said, and charged with assault on a police officer then taken to Bellevue Hospital for a psychiatric evaluation.



Her arresting officer suffered a cut to the eye but refused medical attention, police said.



A second protester, Daniel Murphy, 25, of Palo Verde, Cal., was also charged with assault on a police officer, officials said.