Piacenti and her husband welcomed a baby girl five months ago, and she was killed on her first day back at work after maternity leave, according to a GoFundMe page.
A judge denied pre-trial release for a west suburban man accused of murdering his mother with a sledgehammer.
A 20-year-old was arrested for allegedly stabbing her mother in the north suburbs.
Karina's bill is named after a Little Village mother who was allegedly killed by her husband. Her 15-year-old daughter was also shot and killed.
An Amber Alert is in place for two missing children after their mother was found dead in Hanford on Tuesday.
"By the time that I realized I was in the air, and I thought to myself, 'I might die right now,'" said victim Hailea Soares.