Does this Mac is a Keylogger target?

I will explain some of this issue:

I'm not the owner of the device. As far as I know, the owner —someone who uses his computer to navigate in Netflix and write some letters in Word— is in the middle of legal issues where a lot of money is involved. That, and the lack of important information located in various of his email threads (from an hotmail account) are parts of this recipe. Also, as this person informed me, it is impossible to change the password of this account since another email was added as the parent of this child account and notified when this procedure has taken place.

As he told me, recently he has created a new hotmail account (outlook account?), with a totally different password and the same problem has come again.

I just made my research and tried to get a result based on the knowledge expressed in this post: I believe that I have a keylogger or some sort of spyware installed on my mac, please help!

And here, the results of the whole procedure stated in the referenced previous post (I've replaced the real name of the user with USR and USRNAME):

Device Specs:

OS El Capitan 10.11.2

Mac Book Air 13 inch, Mid 2011

1.7 GHz Intel Core i5

RAM 4gb 1333 mhz DDR3

MacBook-Air-de-USR:~ USRUSRNAME$ kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}'

com.rim.driver.BlackBerryUSBDriverInt (0.0.74)

MacBook-Air-de-USR:~ USRUSRNAME$ sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|edu\.mit|org\.(amavis|apache|cups|isc|ntp|postfi x|x)/{print $3}'

Password:

com.rim.BBDaemon

com.microsoft.office.licensing.helper

com.google.keystone.daemon

com.adobe.fpsaud

MacBook-Air-de-USR:~ USRUSRNAME$ launchctl list | sed 1d | awk '!/0x|com\.apple|edu\.mit|org\.(x|openbsd)/{print $3}'

com.rim.BBLaunchAgent

com.microsoft.Word.8032

com.google.keystone.system.agent

com.rim.RimAlbumArtDaemon

com.microsoft.autoupdate.fba.67232

MacBook-Air-de-USR:~ USRUSRNAME$ ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta} * L*/Fonts 2> /dev/null

/Library/Components:

/Library/Extensions:

ACS6x.kext

ATTOCelerityFC8.kext

ATTOExpressSASHBA2.kext

ATTOExpressSASRAID2.kext

ArcMSR.kext

BJUSBLoad.kext

CIJUSBLoad.kext

CalDigitHDProDrv.kext

HighPointIOP.kext

HighPointRR.kext

PromiseSTEX.kext

SoftRAID.kext

hp_io_enabler_compound.kext

/Library/Frameworks:

AEProfiling.framework

AERegistration.framework

AudioMixEngine.framework

NyxAudioAnalysis.framework

PluginManager.framework

RIM_VSP.framework

RimBlackBerryUSB.framework

iTunesLibrary.framework

/Library/Input Methods:

/Library/Internet Plug-Ins:

Default Browser.plugin

Disabled Plug-Ins

Flash Player.plugin

JavaAppletPlugin.plugin

Quartz Composer.webplugin

SharePointBrowserPlugin.plugin

SharePointWebKitPlugin.webplugin

flashplayer.xpt

googletalkbrowserplugin.plugin

o1dbrowserplugin.plugin

/Library/Keyboard Layouts:

/Library/LaunchAgents:

com.google.keystone.agent.plist

com.rim.BBAlbumArtCacher.plist

com.rim.BBLaunchAgent.plist

/Library/LaunchDaemons:

com.adobe.fpsaud.plist

com.google.keystone.daemon.plist

com.microsoft.office.licensing.helper.plist

com.rim.BBDaemon.plist

/Library/PreferencePanes:

Flash Player.prefPane

/Library/PrivilegedHelperTools:

com.microsoft.office.licensing.helper

/Library/QuickLook:

iBooksAuthor.qlgenerator

iWork.qlgenerator

/Library/QuickTime:

AppleIntermediateCodec.component

AppleMPEG2Codec.component

/Library/ScriptingAdditions:

/Library/Spotlight:

Microsoft Office.mdimporter

iBooksAuthor.mdimporter

iWork.mdimporter

/Library/StartupItems:

/etc/mach_init.d:

/etc/mach_init_per_login_session.d:

/etc/mach_init_per_user.d:

Library/Address Book Plug-Ins:

SkypeABDialer.bundle

SkypeABSMS.bundle

Library/Fonts:

Library/Input Methods:

.localized

Library/Internet Plug-Ins:

Library/Keyboard Layouts:

Library/LanguageModeling:

es-dynamic.lm

Library/PreferencePanes:

Library/Services:

.localized

MacBook-Air-de-USR:~ USRUSRNAME$ osascript -e 'tell application "System Events" to get name of every login item' 2> /dev/null

iTunesHelper

MacBook-Air-de-USR:~ USRUSRNAME$