A Longview woman who was walking at Lake Sacajawea with her 6-year-old son pulled a gun on a man who exposed his genitals to her Wednesday evening, according to police. The 35-year-old woman was near Martin Dock around 8:10 p.m. when the man approached her “aggressively,” sat down and began performing a sex act, then suggested she should watch him, according to the woman and accounts from police. “I put the magazine in my gun. I cocked it,” the woman said in an interview Thursday night. “I said, ‘You need to leave or Ill shoot you. I’m going to blow...