I don't know why my retina MacbookPro keeps crashing and how to fix

My mid2014 retina pro keeps crashing, can't boot into safe mode and can't choose utilities when booting into recovery mode because no mouse commands are accepted. (not sure what key combo would choose a utility such as disk recovery) it resolves itself over time--not sure how.

I Kept the log from last night's crash == 92 pages so i tried to post what might be relevant but i really have no idea. Any help is greatly appreciated, thanks in advance

12/10/14 6:24:28.000 PM kernel[0] BUG in process suhelperd[305]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)   
12/10/14 6:24:24.836 PM com.apple.audio.DriverHelper[202]   The plug-in named AirPlay.driver requires extending the sandbox for the IOKit user-client class IGAccelVideoContextMain.<<<<Note:  there are 6 of these with different devices
12/10/14 6:24:27.000 PM kernel[0]   Sandbox: appleeventsd(26) deny file-read-metadata /Library
12/10/14 6:24:27.000 PM kernel[0]   Sandbox: appleeventsd(26) deny mach-lookup com.apple.ocspd
12/10/14 6:24:28.000 PM kernel[0]   USBF:    9.686    The IOUSBFamily was not able to enumerate a device.
12/10/14 6:24:28.739 PM com.apple.xpc.launchd[1]    (com.apple.imtransferservices.IMTransferAgent) The _DirtyJetsamPriority key is not available on this platform.
12/10/14 6:24:28.739 PM com.apple.xpc.launchd[1]    (com.apple.imtransferservices.IMTransferAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
12/10/14 6:24:28.740 PM com.apple.xpc.launchd[1]    (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
12/10/14 6:24:28.763 PM com.apple.xpc.launchd[1]    (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
12/10/14 6:24:28.847 PM logind[70]  -[SessionManager getClient:withRole:inAuditSession:]:241: ERROR: No session dictionary for audit session 100014
12/10/14 6:24:28.847 PM logind[70]  _SMGetSessionAgent:73: ERROR: __SMGetClientForAuditSessionAgent failed 2
12/10/14 6:24:28.000 PM kernel[0]   BUG in process suhelperd[305]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
12/10/14 6:24:29.289 PM com.apple.xpc.launchd[1]    (com.google.keystone.daemon[317]) Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.google.Keystone.Daemon.Administration
12/10/14 6:24:29.289 PM com.apple.xpc.launchd[1]    (com.google.keystone.daemon[317]) Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.google.Keystone.Daemon.UpdateEngine
12/10/14 6:24:29.296 PM GoogleSoftwareUpdateDaemon[317] -[KeystoneDaemon logServiceState] GoogleSoftwareUpdate daemon (1.2.0.7709) vending:
    com.google.Keystone.Daemon.UpdateEngine: 2 connection(s)
    com.google.Keystone.Daemon.Administration: 0 connection(s)
12/10/14 6:24:29.301 PM mds[34] (Server.Warning:445) No stores registered for metascope "kMDQueryScopeComputer"