Mayra Zulfiqar, 25, was killed at her rented home in Lahore earlier this month
Socialite Zahir Jadoon, 26, confessed to the murder, according to police
Zahir reportedly flew into a rage after Zulfiqar rejected his marriage proposal
Police have arrested Zahir's brother and brother-in-law and are searching for two more relatives they believe to have been involved in the murder
Friend Saad Butt, 28, has also been named as a suspect but denies involvement
Zulfiqar had traveled to Pakistan to attend a wedding and is believed to have extended her stay in the country due to coronavirus travel restrictions