Authorities seek leads in mass shootings that left 31 dead

By MATT SEDENSKY and ASTRID GALVAN
EL PASO, Texas — Authorities in two U.S. cities scoured leads in a pair of weekend mass shootings that killed 31, trying to piece together the motives that led two young men to unleash violence on innocent people in crowded public places.
In El Paso, Texas, the death toll creeped upward Monday from the shooting two days earlier at a Walmart store, with two additional victims succumbing to injuries. Police zeroed in on a racist screed posted online before