The Four Horsemen of the Gen Z Apocalypse
High-potency THC, harm-reduction drug policy, AI and social media, and internet porn — and their compounding effect on a young mind.

For Event Planners
Thirty years of institutional experience, turned into the talk your audience will still be discussing after the conference ends.
Check AvailabilityHigh-potency THC, harm-reduction drug policy, AI and social media, and internet porn — and their compounding effect on a young mind.
On selective enforcement of constitutional rights — the 1st, 4th and 14th included — and what it reveals about who actually holds power.
Spotting dangerous personalities — from Bryan Kohberger to Scott Peterson — and why psychiatric medicine keeps missing them.
The cops are rarely the problem. How statistics drive policing, and the politics behind institutional failure.
The Rag, the Wire, Nigerian 419s and crypto 'pig butchering' — how the cons are built, and how Madoff evaded detection.
Where artificial intelligence is quietly reshaping media, scientific research, and biosecurity risk.
The economics of legal vs. illicit markets, and the public-health toll state legalization hasn't solved.
Represented for speaking engagements via BigSpeak
Speaker reel coming soon
“Grevillius neither asks for sympathy nor softens the edges... The Last Lawman is a raw account of a life lived in violence, suspicion, and institutional decay. Unsparing, unromantic, and precise — this book is a record, not a performance.”