Linux,scripting with ssh and sshpass

I can get the ssh command to remotely perform file with commands such as ls -la, etc, but I am having difficulty in some other areas:

I have two scenarios, one works, the other does not:

WORKING SCENARIO

I have 2 ssh session running and do the following:

First session:

I start an ftp session

[root@xxclnt1 etc]# ftp
ftp>

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The second session

I kill the ftp session

[root@xxclnt1 home]# cat test.sh
pkill -9 ftp

[root@xxclnt1 home]# ./test.sh
[root@xxclnt1 home]#

The first session then successfully terminates the FTP

[root@xxclnt1 etc]# ftp
ftp> Killed
[root@xxclnt1 etc]#


NON_WORKING SCENARIO

The first session starts ftp as before

[root@xxclnt1 etc]# ftp
ftp> Killed

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The second session then calls ssh to perform the test.sh (on the same machine as the caller, trying
to understand how this works so I can write more meaningful scripts involving terminating remote clients)

sshpass -p 'xxxxx' ssh root@xxclnt1 /home/test.sh

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However, the ftp is still alive in the other session, and can also been see with the ps command

[root@xxclnt1 home]# ps -ef | grep ftp
root      6471  6046  0 14:19 pts/1    00:00:00 ftp
root      6491  6445  0 14:21 pts/2    00:00:00 grep ftp
[root@xxclnt1 home]#

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1> Most importantly, why did the test.sh fail to work

2> and how can I get it to work ?

Thanks