Same thing happened to my pal around 2011. He'd just withdrawn some money from his SACCO (a loan actually). Somehow, he got a little suspicious and instead of taking the lift to downstairs, he first took one going up then after a short while took one going straight down (Afya SACCO, the green building at Hakati road/Tom Mboya street junction).
From here, he walked straight to Bell Bottom (co-op hse), deposited the bulk of the cash then used the rest to pay his son's college fees as well as do some shopping. Horror of horrors was to come on his way home though.
Firstly, on getting to the bus stop (one of the numerous upcountry ones along Accra road), he found what he'd later say was a rather unfamiliar vehicle. But being the last vehicle home and with other passengers boarding, he decided to board too, took the middle seat on the last row. He did however notice one off thing: all the passengers, except two, were male.
So anyway, the vehicle starts on it's journey along river road. Luckily, there was not much traffic that day as the immediate next day was a public holiday. As they were approaching Khoja roundabout (just near the Guardian buses offices), their driver seemed to inexplicably slow down yet the road ahead was clear. Just then, there was a loud bang coming from outside the vehicle, followed by brief silence, just long enough for my pal to realize he was now bleeding from his right temple. Only then did my pal realize that someone from outside the vehicle had actually shot at him, aimed at his head but the bullet missed and grazed him slightly hence the bleeding.
In the ensuing confusion, the driver abandoned the vehicle and fled. Some two cops who happened to be passing by on foot radioed for reinforcements (they were unarmed) who then came to the rescue, organized for an ambulance to take my pal to KNH while the matatu was towed to Central police station.
To this day, it hasn't been known what the motive was though someone might obviously have tipped off someone else about the huge wad of cash he had just received and they probably thought he still had all the cash on him. If this was indeed true, can you imagine how many people were in on it, right from the teller and perhaps all the way to the mat driver?
Life is like playing a violin solo in public and learning the instrument as one goes on.