Sauce?
Doing my own digging.
Steven Silks:
https://nypost.com/2019/06/05/nypd-chief-fatally-shoots-self-a-month-before-mandatory-retirement/
Joseph Calabrese (1 day later):
Michael J. Caddy (within 9 days):
Kevin Preiss (within a month):
https://nypost.com/2019/06/27/nypd-cop-kills-himself-in-fourth-officer-suicide-this-month/
Terrance McAvoy (the following month):
Johnny Rios (another month later):
Robert Echeverria (another month later):
https://nypost.com/2019/08/21/nypd-officer-robert-echeverria-remembered-in-tearful-queens-funeral/
Looking for info on who saw the laptop.
Edit: Claim is old. At least a year plus. At least one article makes claims that two of the officers listed were deeply connected to the case, but I can’t find much primary sources linking all these officers to the laptop. It’s been over a year though. A lot of this could have been purged and I haven’t done a very exhaustive check. Really, just a cursory one. The officers do all seem to be connected in one way or another, but they’re all NYPD, so that isn’t super alarming either.
Early life section on Wikipedia should be sufficient
(post is archived)