Police say alcohol was a factor in all three cases.
In the latest incident, Oct. 31, a female student said a male student sexually assaulted her in Washington University's Sigma Phi Epsilon house. In each of those two cases, the victim was a university student and she identified a suspect, said Sgt. Stephen Monticelli of the Columbia Police Department. Both victims were also drunk, he added. Alcohol also was involved in the Washington University case, WU police Chief William F. Taylor said today.