Marvin was in a hurry, he felt like he was not going to be on time and his feet were not fast enough. He felt someone bump into him, he looked up immediately and saw a flurry of coat, and an unruly hair mingling with the crowd in the hall. He knew his wallet is now in the possession of the person getting away. Well, he didn't know he knows how this works, Marvin thought to himself as he spoke into his phone for all exits to be shut, being the owner of the company can come in handy atimes. Everywhere was on lockdown and an announcement was made that anyone with the boss's wallet should come forth. No one came forth but Marvin already saw the young and walked to him,
"Give me my wallet." Marvin signalled the security to search the young man. Marvin almost requested that the security today take him away until he heard the young man, just for my mother, she is dying.
-VICTORIA UKPAKA
A few structural and grammatical errors:
1. "Well, he didn't know he knows how this works..."
The 'he' in that statement appeared twice, and it obviously refers to different persons. This is confounding. The statement is also ambiguous.
The statement should read, "Well, the young man didn't know Marvin knew exactly how stuff like this worked..."
2. "No one came forth but Marvin already saw the young and walked to him..."
You omitted 'man' in 'young man'.
3. "Marvin almost requested that the security today take him away..."
The word 'today' has no place in that statement. You must have meant to use the word 'to', as in 'to take him away'.
4. "Until he heard the young man, just for my mother, she is dying..."
Learn to use quotation marks in your dialogue. E.g.,
Until he heard the young man say, "Just for my mother, she is dying."