Robert C. Peffer, 31, admitted to sending threatening messages to Matthew Walker using the Twitter handle @RepublicPrince2. The Journal-Sentinel reports:
Robert C. Peffer was charged last month with four misdemeanors related to using a computer to spread obscenity and threats, and he is due in court Monday for a pretrial conference.
Walker's son, Matthew Walker, began receiving threatening messages on Twitter on June 30, his birthday. The messages included racial slurs, physical threats and inflammatory remarks about the governor and his son, according to a criminal complaint released Tuesday.
Peffer told a detective he had no connection to Matthew Walker, but sent the tweets because of his opposition to Gov. Walker after a massive recall effort that stemmed from February 2011 legislation that stripped most collective bargaining rights from public employees.
"I have been part of the recall since February 2011," Peffer said, according to the Journal-Sentinel.
While the governor did not comment on the threats from Peffer, he did comment on similar situations in November 2013, saying he "was really pissed off" when his family -- including his wife and kids -- received threats in the past.
Matthew Walker has been increasing his political involvement in recent months, serving as chairman of the Wisconsin Federation of College Republicans and speaking to delegates at the 2014 Wisconsin GOP convention.
Read more at the Journal-Sentinel.