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RAYTOWN, Mo. — Twenty years after a multi-state killing spree, police release new information about the “I-70” killer in an effort to solve the case.

Police said one man is responsible for shooting killing six people in five Midwestern cities in April and May of 1992. Four of the crimes were committed at strip malls along I-70 — two in Missouri and two in Indiana. Two other crimes were committed at a bridal shop near I-35 in Wichita, Kan.

According to St. Louis Today, St. Charles, Mo., police shared unreleased information about the gun used in all six shootings. Lt. David Senter said the weapon was a .22-caliber gun, possibly an Intratec Scorpion or Erma Werke Model ET 22. The ammunition was CCI brand .22-caliber long rifle with copper-clad lead bullets.

Police described the suspect as a white male in his mid-20s to mid-30s, but more likely in his mid-30s, which would make him in his mid-50s today if still alive. One of the better descriptions of the suspect came from an eye-witness in Raytown, Mo. A video store owner in a strip mall where one of the shootings happened saw a man enter a neighboring gift shop then heard a pop. A grocery store clerk saw a man climb a hill to I-70 and disappear. The video store owner found the body of 37-year-old Sarah Blessing inside the gift shop.

Prior to her murder, police said the same man is suspected of killing Robin Fuldauer, 26, at a Payless shoe store in Indianapolis; Patricia Magers, 32, and Patricia Smith, 23, at La Bridal shop in Wichita; Michael McCown, 40, at Sylvia’s Ceramics in Terra Haute, Ind., and Nancy Kitzmiller, 24, at Boot Village in St. Charles, Mo.

Police believe the same man could be responsible for three other crimes in Texas in 1993 and 1994. Two of the three victims died.