Can a friend’s tragic death help pass domestic violence law?

Eileen McCay is hoping change will come from tragedy. Her close friend Colleen Brownell and Brownell’s stepsister, Alysia McCloskey, deserve it, she says. The two were at McCloskey’s home in Collingswood on Dec. 30 when they were stabbed to death, prosecutors say. Brownell’s ex-fiance Mark Lyczak, 45, of Burlington City, is charged with their murders and…