Car Windows Smashed — Police found 12 vehicles with their driver’s-side windows broken across several South Arlington blocks, including near 10th Street S. and S. Columbus Street, in a series of reports filed June 17. The vehicles vary in make and model and there are no suspect descriptions, according to police. The case remains under investigation. [ACPD]

Rosslyn Cyberwarfare Unicorn — Twenty Technologies, a Rosslyn-based startup, raised $100 million at a $1 billion valuation, becoming what it calls the first venture-backed cyberwarfare unicorn in America. The company builds offensive cyber tools for the Defense Department and intelligence community. “We’re building software that enables our war fighters, our elite cyberoperators, to move even faster,” CEO Joe Lin said. [WBJ]

JFK Agent Laid to Rest — Clint Hill, the Secret Service agent who threw himself over President Kennedy and the first lady after shots rang out in Dallas in 1963, was buried at Arlington National Cemetery with military honors Thursday. Hill, who died at 93, served under five presidents. Asked why the family chose Arlington, his widow Lisa McCubbin Hill said, “There was no other place.” [Arlington National Cemetery]

Juneteenth Holiday Schedule — Arlington County government offices are closed today for the Juneteenth holiday. Trash, recycling and organics curbside collection will run on its regular schedule, and parking meters won’t be enforced, though permit parking remains in effect. [Arlington County]

Toilet, Not Trash Can — Arlington’s Department of Environmental Services tied the Wizards’ expected No. 1 NBA draft pick to a sewer-system reminder on social media. “If you go No. 1 or even No. 2, only flush paper from the roll alongside. Everything else is a threat to sewer lines. Let’s go Wiz!” [Arlington DES/X]

Chiefs Reaffirm Mutual Aid — Arlington County Police Chief Andy Penn joined regional public safety leaders at an Alexandria Police Department summit Thursday, where chiefs reaffirmed a commitment to mutual aid. “I’m confident that if I need something and I call Pete [Newsham] or Tarrick [McGuire], they’re going to help me,” Penn said. [ALXnow]

Driest Spell Since 1941 — Gov. Abigail Spanberger (D) is urging Virginians to voluntarily conserve water as the state endures its driest period since 1941, with precipitation about eight inches below average. “All Virginians can play a role in protecting our water supply during this historic dry period,” she said. The Department of Environmental Quality reports 100% of the commonwealth in drought. [Press Release]

It’s Friday — Expect scattered rain showers before 10 a.m. today, then partly sunny skies with a high near 83 and northwest winds of 3–10 mph gusting to 20. Skies turn mostly clear overnight, with a low around 64. [NWS]

New Legal Notice — Convenience grocery store applying for off-premises beer and wine license. [Public Notices]