BY CHRISTOPHER SHERMAN, ASSOCIATED PRESS
McALLEN, Texas -- Investigators on Wednesday were still trying to determine a motive for the killing of a teenage woman and the wounding of her girlfriend in a shooting at a South Texas park that has caught the attention of gay rights groups.
The shooting at a Portland park Friday night killed 19-year-old Mollie Olgin and wounded 18-year-old Mary Kristene Chapa. Police in Portland, a town of about 15,000 people about seven miles north of Corpus Christi, have not identified any suspects or announced any arrests.
Vigils for the women are scheduled for Wednesday evening in San Francisco and Friday in Washington, D.C., and Portland, Texas, among other cities.