Found this in Sunday's paper -
Spooky Tours:
1. Haunted Melbourne Ghost Tour
The adults-only walking tour is run by Haunted Bookshop and occult book author Drew Sinton (or perhaps Garth Marenghi in disguise), on Saturdays from 8:30pm - 11pm from the bookshop at 15 McKillop St, City, off Bourke St. Cost $20 for adults.
The tour looks at the city's dark history, including the old cemetery wall at Queen Victoria Market, creepy alleys, abandoned buildings and other places that Drew claims ghosts inhabit. More: 9670 2585.

2. Melbourne Cemetery
Tours are on Wednesdays and Sundays from 1pm - 3pm, at $10 per person. More: 0500 500 655.

3. Night Walks
Night tours of the cemetery run by the National Trust. The tours are popular so early bookings are essential. The tours run in May and on Halloween. The cost is $22 for adults, $20 for National Trust Members, and $13 for children under 16. More: 9656 9800.

Gang related activity perhaps?

LLD