The attack came months after she survived an assassination attempt in Karachi. Authorities want Musharraf arrested for not doing enough to protect Bhutto's life despite numerous threats. The former military ruler has denied having anything to do with the killing.
Last year, Pakistani authorities confiscated his property and froze his bank account. They have accused him of not declaring foreign bank accounts he had in his name.
The Sindh province Home Ministry said last year that a jail cell awaited him in Karachi upon his return, .
In Pakistan, the provincial Home Ministry, not the federal government, is responsible for such arrests.
Musharraf defended his record last year, and said he did much to improve the nation's economy while he was in office.
However, he has admitted to making mistakes.
Musharraf's popularity began declining in 2007 after he suspended the nation's Supreme Court chief justice for "misuse of authority." The move resulted in protests and accusations that he was attempting to influence the court's ruling on whether he could seek another five-year term.
Although the chief justice was reinstated, the damage was done.
Pakistanis were also disillusioned with Musharraf's policies that led to shortages of essential food items, power cuts and skyrocketing inflation.
However, under his leadership, Pakistan attained respectable economic growth rates and established a generally favorable investment climate. Along with that came a growing middle class, more aggressive news media, and a more assertive judiciary.
Pakistan also disapproved of the way Musharraf carried out his end of the "war on terror" and used it as a crutch to explain away many of his unpopular moves.
After the September 11, 2001, terror attacks against the United States, Musharraf supported the American war on terror and targeted the Taliban. The militants have accused him of pushing an American agenda in Pakistan.
Musharraf's return comes at an opportune time.
Last week, Pakistan marked the first time a democratically elected government has served a full five-year term in the country's 65-year history.
While the ruling Pakistan People Party rode to power on the back of discontent with Musharraf, it had to deal with the same problems that plagued Musharraf: food shortages and power cuts.
Five years is often enough time for a populace to forgive and forget.
On Sunday, election officials named former chief justice Mir Hazar Khan Khoso as interim prime minister. He will head the caretaker administration through the May elections.
It remains to be seen whether Pakistan, now soured by the PPP's reign, will welcome Musharraf back with open arms.