Rap videos made by Ronald Herron, the alleged leader of the Brooklyn, N.Y., “Murderous Mad Dogs” set of the Bloods, are admissible at his murder and ­racketeering trial, but so are the views of a defense expert who will testify that “gangsta” rap is not ­necessarily a statement of truth, a federal judge has ruled. U.S. District Judge Nicholas Garaufis on May 8 waved off defense arguments that admission of the videos breached First Amendment protections and evidentiary rules.

ALIBABA IPO

Chinese electronic-commerce company Alibaba Group Holding Ltd. filed its highly anticipated U.S. initial public offering on May 6, tapping Simpson Thacher & Bartlett for legal counsel. Sullivan & Cromwell will advise the underwriters. The filing says Alibaba plans to raise $1 billion, but the figure is expected to grow to more than $15 billion. Alibaba operates an online shopping center, Tmall, and digital payment operator Alipay, among other brands. Last year, it posted revenues of nearly $8 billion and net income of $3.4 billion.

DATA BREACH COSTS