Unable to Cancel Job in SM37 (R3)

Question from sdn :
We got a situation :Unable to Kill the Background job (BI_REQ*).It shows "ACTIVE" and been running for more than 19,000 secs (2 days..) .When this job started ,the PROCESS ID was : 244277..But after a day,this PROCESS ID : 244277 has been allocated to some other R3 Program(Monitored in SM50).But the Background Job is still "ACTIVE".Tried killing the Job in SM37--->Cancel Active Job or Delete the Job) but ,when tried to "Cancel" the Job,we get a message : The job is NOT ACTIVE !!!. Then when tried to "DELETE" the job ,we get a message " Job is still ACTIVE"......!!!!
----->Since there is no Work Process in SM50,what is the alternative solution to Kill this Job..........???
(In BW ,there is no Update of data records,with the monitor showing

Answere :
Go to SM37 >> select the job >> Click on the JOB tab in the top >> Click on Check status............
Then it status will show cancel...........
Actually sometimes it happens job gets cancelled but staus shows active....then we need to do this..........actually job is already cancelled......