 Aragtida shakhsiyadeed ee is-dilka sida uu caddeeyay cilmi-baare dhanka climi-nafsiga ah oo lagu magacaabo Dr Thomas Joiner, oo isaga qudhiisa aabihii uu is-dilay, ayaa soo jeedinaya inay jiraan dhowr sababood oo keeni kara in qofku uu is-dilo. 