Lemon Hill shooting that left 2 dead and 9 wounded was a 'heinous act of violence,' Parker says; shooters' motives unclear Story by Rob Tornoe, Rodrigo Torrejón, Emily Bloch, Nate File, Nick ...

3 shooters believed to be involved, Philadelphia leaders say Bethel said the shooting occurred while different groups of people were gathered in the park, some beginning to pack up to leave.