Working for safe & strong communities. Solve more crimes faster. | now: Vice President of Criminal Justice @Arnold_Ventures | before: a bunch of stuff
United States
Joined June 2013
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- Following292
- Followers4K
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I’ve heard some criminal justice reformers on the Left try to claim the midterms were a backlash to a law and order agenda. This is so far from the truth.
Law and order politics and CJ policy weren’t driving factors in the election. It gave no new mandate. Don’t overreach.
Marc Krupanski retweeted
27 years ago today, we lost my dad.
Sweetness. The man whose smile could light up a whole city and whose heart never stopped running. Not a day goes by that I don’t miss him.
What keeps me going is seeing how much you all still love him. The stories, the memories, the way you keep his name and spirit alive… it means everything to our family.
Thank you for never forgetting him. Thank you for carrying his legacy with us all these years.
We’re good down here, Pop. The family’s strong, and your Sweetness lives on in every person you touched.
❤️ @walterpayton
#Bears 🐻⬇️
Good job PA State Police!
Lethality Assessment Programs are an evidence-based initiative designed to help law enforcement identify victims who may be at heightened risk of death and connect them with lifesaving support.
Pennsylvania State Police are adopting a new training program aimed at protecting domestic violence survivors from life-threatening abuse.
audacy.com/kywnewsradio/news…
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Interesting move by WH. I've been hearing nothing but desires to ban Kratom from Republican state lawmakers across the country.
"Trump Administration Backs Down on an Opioid Ban After Kratom Industry Lobbying" nytimes.com/2026/10/28/us/po…
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Congrats, @Knoxville_PD!
Historic lows in major crimes.
wate.com/news/knox-county-ne…
It's not simply inflation.
Fascinating NYT piece that shows various things - houses, college, child care, entertainment - after adjusting for inflation are still much more expensive now - sometimes even 6x as much - than they were 40 years ago.
nytimes.com/interactive/2026…
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ICYMI: @AaronChalfin, Kapustin, et al eval found that Baltimore's policing strategy was a driver of their historic decline in violent crime. Homicides in Baltimore fell roughly 25% more than in comparable large U.S. cities.
crimejusticelab.org/wp-conte…
Back in Trenton today to testify on the Assembly version of this bill, A4202.
Happy to say the bill passed out of both committees unanimously.
Great to see shared action to make New Jersey safer and more just.
I was in Trenton, NJ this morning to testify in support of S4312, which expands collection of DNA for human trafficking, car jacking, arson, & burglary arrests.
DNA helps solve more crimes & protects the innocent. It will make NJ safer & more just.
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Marc Krupanski retweeted
Need someone good for this.
Come work with me! My team at Anthropic is hiring someone to help develop our public policy positions on frontier AI safety: topics like loss-of-control, automation of AI R&D, monitorability, and independent evaluation. We’re looking for someone with deep expertise in some of these areas and familiarity with the technical AI safety/governance landscape. You’d develop new policy positions, participate in cross-company fora, give feedback on AI safety legislation, and work closely with our technical teams. It’ll be a blast.
job-boards.greenhouse.io/ant…
Marc Krupanski retweeted
Indeed it does!
johnlocke.org/research/more-…
Presence matters for crime deterrence.
“Louisville Metro Police launches 'LIFT' task force to combat crime in high-traffic districts”
spectrumnews1.com/ky/louisvi…
Presence matters for crime deterrence.
“Louisville Metro Police launches 'LIFT' task force to combat crime in high-traffic districts”
spectrumnews1.com/ky/louisvi…
Marc Krupanski retweeted
First bill I ever filed as a legislator was for felony arrestee DNA. KY has yet to adopt it, but a number of other states have. No telling how many cold cases remain cold, and violent offenders behind them remain free, because this isn't widely used as an investigative lead.
I was in Trenton, NJ this morning to testify in support of S4312, which expands collection of DNA for human trafficking, car jacking, arson, & burglary arrests.
DNA helps solve more crimes & protects the innocent. It will make NJ safer & more just.
Marc Krupanski retweeted
The Anthropic editorial team is hiring! Come work with me.
job-boards.greenhouse.io/ant…
Marc Krupanski retweeted
Preliminary evidence suggests GLP-1 drugs may reduce cravings for addictive substances, but stronger evidence is needed to support broader access.
We @Arnold_Ventures are proud to fund the most rigorous study ever of effect of GLP-1s on alcohol/opioid use and downstream impacts.
We are hiring! Come join our team @Arnold_Ventures
Manager, Criminal Justice Policy
Washington DC or NYC based
arnoldventures.org/careers/m…
"Boosting public safety starts with fully funding federal prisons. Understaffing makes work dangerous for those who are on duty, and it worsens conditions for those who live in prison." - from @ScottEPeyton1
washingtonpost.com/ripple/20…
An artificial intelligence model operated by @AnthropicAI submitted false information about an unsolved Philadelphia homicide to the police department’s public tip forum this summer.
inquirer.com/crime/anthropic…
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Marc Krupanski retweeted
You might have noticed that campus sexual assault is in the news! (Again. Sigh.)
This form of violent crime is a pervasive but solvable problem. I wrote a piece for @VitalCityNYC about how technology offers new, promising solutions — from Callisto and DNA databases to match cases from the same perpetrator, to The Fund to Prevent Sexual Assault's first cohort of scalable interventions to help young men form healthier romantic relationships. We have a lot of work to do, but I am optimistic that progress is possible.
This is the type of problem I'm excited to help solve with the public safety R&D engine I'm building at @RenPhilanthropy.
