Maybe, one suspect was homeless, had no car and strolled around in the area of Monon Bridge, utensils for assaults in his pockets/jacket, photographed by Libby. Whenever, he left some evidence behind and disappeared.
The next suspect, also homeless but in contrast to Nr. 1 driving a car, also strolled around, a weapon in his pocket/jacket, not photographed by Libby, and he also met the girls by chance. Whenever, he also left some evidence behind and disappeared with his car.
At the end there are two girls, maybe one died hours before the other died. Police found evidence here and there (on bridge, under bridge, in the river, on RL's property, tire tracks on an uncultivated field, etc.) from different sources. Maybe, one suspect isn't alive anymore.
Maybe, RL saw both the suspects and didn't want to accuse the wrong man.
For both suspects it hadn't been possible to confirm their presence on 13th at Monon Bridge but both probably were there. Maybe, both suspects have wifes and they don't help but are lieing. At this time nobody (LE) knows who was the first and who had murdered the girls.
:thinking: Possible or not?