2011 Seal Beach shooting

Wikipédia :
The Seal Beach shooting was a mass shooting that occurred on October 12, 2011, at the Salon Meritage hair salon in Seal Beach, California. Eight people inside the salon and one person in the parking lot were shot, and only one victim survived. It was the deadliest mass killing in Orange County history.
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The shooting
At 1:21 p.m. PDT (20:21 UTC), police responded to reports of shots fired at the Salon Meritage hair salon on 500 Pacific Coast Highway

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The suspect

Scott Evans Dekraai, 41, divorced his wife Michelle in 2007 after four years of marriage

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Police initially gave Dekraai's age as 42; his date of birth is October 17, 1969

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la date de naissance du tireur nous permet de regarder sa situation : 

octobre 2011 (17/10/1969)
Ve 7 E(15)
Sa 8

Di 9

Lu 10

Ma 11

Me 12 P(18)

Je 13 P(19)

Ve 14 E(22) I(26)

et voici les éléments "pulsions" que l'on peut retenir :
- jour critique physique P18
- toute proximité 42ème anniversaire
- pleine période critique septennale des 42 ans
- ensemble triple critique P18/P19 - E22 - i26