Chicago : A massive manhunt was underway in search of a “highly-dangerous” Wisconsin man who US authorities said robbed a gun shop and sent a lengthy manifesto to President Donald Trump.

Some 150 local, state and federal police officers and personnel were on Sunday searching for Joseph Jakubowski, 32, who on Tuesday allegedly stole some 16 “high-end firearms” from a gun store in Janesville, Wisconsin and set fire to a car nearby, according to Rock County Sheriff Robert Spoden.             Spoden said the suspect had written a 161-page long anti-government manifesto, which he had mailed to the White House. Police obtained a copy.

“Joseph Jakubowski has been highly agitated by national politics recently,” Sheriff Robert Spoden told journalists Friday, adding that an associate said Jakubowski “recently verbalized a plan to steal guns and use them in an unspecified attack.”                                 PTI