A Louisiana woman says she doesn't want the death of her son's father, a black man killed by white police officers, to "be a race thing."

Quinyetta McMillon wouldn't say, however, whether she believes police would have treated Alton Sterling the same way had he been white.

McMillon said Friday that she is grieving with the families of five police officers killed by a Dallas sniper as people marched to protest Sterling's death. She says she's now "walking a mile with them."

She also says she hopes future protests will remain peaceful.

Outside the Baton Rouge Police Department headquarters Friday night, a line of officers with shields pushed hundreds of protesters away.