20 years after Columbine, former Principal Frank DeAngelis is still learning how to move on – CNN

‘);$vidEndSlate.removeClass(‘video__end-slate–inactive’).addClass(‘video__end-slate–active’);}};CNN.autoPlayVideoExist = (CNN.autoPlayVideoExist === true) ? true : false;var configObj = {thumb: ‘none’,video: ‘us/2014/06/11/pkg-cabrera-columbine-principal-retires.cnn’,width: ‘100%’,height: ‘100%’,section: ‘domestic’,profile: ‘expansion’,network: ‘cnn’,markupId: ‘body-text_40’,theoplayer: {allowNativeFullscreen: true},adsection: ‘const-article-inpage’,frameWidth: ‘100%’,frameHeight: ‘100%’,posterImageOverride: {“mini”:{“width”:256,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-hp-video.jpg”,”height”:144},”xsmall”:{“width”:300,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-story-body.jpg”,”height”:169},”small”:{“width”:640,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-story-top.jpg”,”height”:360},”medium”:{“width”:980,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-horizontal-large-gallery.jpg”,”height”:552},”large”:{“width”:980,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-horizontal-large-gallery.jpg”,”height”:552},”full16x9″:{“width”:980,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-horizontal-large-gallery.jpg”,”height”:552},”mini1x1″:{“width”:60,”type”:”jpg”,”uri”:”//cdn.cnn.com/cnnnext/dam/assets/140611071038-pkg-cabrera-columbine-principal-retires-00003808-topics.jpg”,”height”:60}}},autoStartVideo = false,isVideoReplayClicked = false,callbackObj,containerEl,currentVideoCollection = [],currentVideoCollectionId = ”,isLivePlayer = false,mediaMetadataCallbacks,mobilePinnedView = null,moveToNextTimeout,mutePlayerEnabled = false,nextVideoId = ”,nextVideoUrl = ”,turnOnFlashMessaging = false,videoPinner,videoEndSlateImpl;if (CNN.autoPlayVideoExist === false) {autoStartVideo = false;if (autoStartVideo === true) {if (turnOnFlashMessaging === true) {autoStartVideo = false;containerEl = jQuery(document.getElementById(configObj.markupId));CNN.VideoPlayer.showFlashSlate(containerEl);} else {CNN.autoPlayVideoExist = true;}}}configObj.autostart = CNN.Features.enableAutoplayBlock ? false : autoStartVideo;CNN.VideoPlayer.setPlayerProperties(configObj.markupId, autoStartVideo, isLivePlayer, isVideoReplayClicked, mutePlayerEnabled);CNN.VideoPlayer.setFirstVideoInCollection(currentVideoCollection, configObj.markupId);videoEndSlateImpl = new CNN.VideoEndSlate(‘body-text_40’);function findNextVideo(currentVideoId) {var i,vidObj;if (currentVideoId && jQuery.isArray(currentVideoCollection) && currentVideoCollection.length > 0) {for (i = 0; i 0) {videoEndSlateImpl.showEndSlateForContainer();if (mobilePinnedView) {mobilePinnedView.disable();}}}}callbackObj = {onPlayerReady: function (containerId) {var playerInstance,containerClassId = ‘#’ + containerId;CNN.VideoPlayer.handleInitialExpandableVideoState(containerId);CNN.VideoPlayer.handleAdOnCVPVisibilityChange(containerId, CNN.pageVis.isDocumentVisible());if (CNN.Features.enableMobileWebFloatingPlayer &&Modernizr &&(Modernizr.phone || Modernizr.mobile || Modernizr.tablet) &&CNN.VideoPlayer.getLibraryName(containerId) === ‘fave’ &&jQuery(containerClassId).parents(‘.js-pg-rail-tall__head’).length > 0 &&CNN.contentModel.pageType === ‘article’) {playerInstance = FAVE.player.getInstance(containerId);mobilePinnedView = new CNN.MobilePinnedView({element: jQuery(containerClassId),enabled: false,transition: CNN.MobileWebFloatingPlayer.transition,onPin: function () {playerInstance.hideUI();},onUnpin: function () {playerInstance.showUI();},onPlayerClick: function () {if (mobilePinnedView) {playerInstance.enterFullscreen();playerInstance.showUI();}},onDismiss: function() {CNN.Videx.mobile.pinnedPlayer.disable();playerInstance.pause();}});/* Storing pinned view on CNN.Videx.mobile.pinnedPlayer So that all players can see the single pinned player */CNN.Videx = CNN.Videx || {};CNN.Videx.mobile = CNN.Videx.mobile || {};CNN.Videx.mobile.pinnedPlayer = mobilePinnedView;}if (Modernizr && !Modernizr.phone && !Modernizr.mobile && !Modernizr.tablet) {if (jQuery(containerClassId).parents(‘.js-pg-rail-tall__head’).length) {videoPinner = new CNN.VideoPinner(containerClassId);videoPinner.init();} else {CNN.VideoPlayer.hideThumbnail(containerId);}}},onContentEntryLoad: function(containerId, playerId, contentid, isQueue) {CNN.VideoPlayer.showSpinner(containerId);},onContentPause: function (containerId, playerId, videoId, paused) {if (mobilePinnedView) {CNN.VideoPlayer.handleMobilePinnedPlayerStates(containerId, paused);}},onContentMetadata: function (containerId, playerId, metadata, contentId, duration, width, height) {var endSlateLen = jQuery(document.getElementById(containerId)).parent().find(‘.js-video__end-slate’).eq(0).length;CNN.VideoSourceUtils.updateSource(containerId, metadata);if (endSlateLen > 0) {videoEndSlateImpl.fetchAndShowRecommendedVideos(metadata);}},onAdPlay: function (containerId, cvpId, token, mode, id, duration, blockId, adType) {/* Dismissing the pinnedPlayer if another video players plays an Ad */CNN.VideoPlayer.dismissMobilePinnedPlayer(containerId);clearTimeout(moveToNextTimeout);CNN.VideoPlayer.hideSpinner(containerId);if (Modernizr && !Modernizr.phone && !Modernizr.mobile && !Modernizr.tablet) {if (typeof videoPinner !== ‘undefined’ && videoPinner !== null) {videoPinner.setIsPlaying(true);videoPinner.animateDown();}}},onAdPause: function (containerId, playerId, token, mode, id, duration, blockId, adType, instance, isAdPause) {if (mobilePinnedView) {CNN.VideoPlayer.handleMobilePinnedPlayerStates(containerId, isAdPause);}},onTrackingFullscreen: function (containerId, PlayerId, dataObj) {CNN.VideoPlayer.handleFullscreenChange(containerId, dataObj);if (mobilePinnedView &&typeof dataObj === ‘object’ &&FAVE.Utils.os === ‘iOS’ && !dataObj.fullscreen) {jQuery(document).scrollTop(mobilePinnedView.getScrollPosition());playerInstance.hideUI();}},onContentPlay: function (containerId, cvpId, event) {var playerInstance,prevVideoId;if (CNN.companion && typeof CNN.companion.updateCompanionLayout === ‘function’) {CNN.companion.updateCompanionLayout(‘restoreEpicAds’);}clearTimeout(moveToNextTimeout);CNN.VideoPlayer.hideSpinner(containerId);if (Modernizr && !Modernizr.phone && !Modernizr.mobile && !Modernizr.tablet) {if (typeof videoPinner !== ‘undefined’ && videoPinner !== null) 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