My sympathies to you, your daughters and your neighbor. My wife's star student committed suicide last fall. It won't be an easy road. For persons considering suicide in circumstances other than terminal illnesses, the best piece I know on the topic is Schopenhauer's essay on Suicide. His argument is not that suicide is wrong, but it is ineffective and philosophically confused.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13