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JavaScript

var json = `{
	"education": [{
		"school": {
			"id": "162285817180560",
			"name": "Jhenaidah** School"
		},
		"type": "H**hool",
		"year": {
			"id": "14404**5610606",
			"name": "2011"
		},
		"id": "855**14449421"
	}, {
		"concentration": [{
			"id": "15158**968",
			"name": "Sof**ering"
		}, {
			"id": "20179020**7859",
			"name": "Dig**ty"
		}],
		"school": {
			"id": "10827**27428",
			"name": "Univer**g"
		},
		"type": "College",
		"id": "9885**826013"
	}, {
		"concentration": [{
			"id": "108196**810",
			"name": "Science"
		}],
		"school": {
			"id": "2772**996993",
			"name": "some COLLEGE NAME I WANT TO GET"
		},
		"type": "College",
		"year": {
			"id": "1388*****",
			"name": "2013"
		},
		"id": "8811215**16"
	}]
}`;

var obj = JSON.parse(json);

// get last item in array:
var last = obj.education[obj.education.length - 1].school.name;

console.log(last);